Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 6432254 | Wood composite prepared with a B-stageable resin A method for making a consolidated wood product comprising coating wood components with a B-stageable, phenol-formaldehyde resole resin; heating the coated wood components to about 80 to 140° C. for a time sufficient to advance the resin to a B-stage; fo... | 08/13/2002 |
| 6307009 | High catalyst phenolic resin binder system An aqueous binder composition suitable for use as a binder in making wool and board products including fiberglass insulation comprising a phenolic resole resin binder made from phenol and formaldehyde by using an excess amount of a basic catalyst.... | 10/23/2001 |
| 6291600 | Method of preventing scale adhesion to the surfaces of a polymerization tank In a novel method of homo- or copolymerization of vinyl chloride, a specified coating agent is applied on the surfaces of the portions which will become into contact with the vinyl chloride monomer during the polymerization process. The coating agent is i... | 09/18/2001 |
| 6245882 | Method for the preparation of polymers Method for the manufacture of a phenolic resin emulsion and/or dispersion, wherein an aldehyde, a phenolic compound and an alkaline catalyst are allowed to react at a temperature of 40-100° C. until a desired degree of condensation is achieved, and the p... | 06/12/2001 |
| 6232427 | Esterification method Methods of making halogenated aromatic esters are described. Polymer compositions including halogenated aromatic esters are also described. In one embodiment, the method includes contacting a tetrabromophthalate, an alcohol and barium acetate.... | 05/15/2001 |
| 6214964 | Phenol formaldehyde resins A process for forming a phenol formaldehyde resin, the process comprising the steps of: (i) reacting phenol with an excess of a formaldehyde material in the presence of an acid or base catalyst until water separates from the reactants as an immiscible lay... | 04/10/2001 |
| 6046252 | Curatives for phenolic novolacs A binder composition of a phenolic novolac resin and a (lower) alkoxylated triazine-formaldehyde resin curing agent is disclosed. The triazine resins have sufficient carbon atoms in the alkoxy groups so as to provide a curing agent having a water solubili... | 04/04/2000 |
| 5847058 | Alkylresorcinol modified phenol-aldehyde resol resin and binder system, and method of making same A process for the production of a storage-stable, modified phenol-aldehyde resol resin includes the use of an alkylresorcinol modifier and preferably a readily-available mixture of alkylresorcinols. A binder system includes the modified phenol-aldehyde re... | 12/08/1998 |
| 5756599 | Binder resin, binder system, cellulosic composite articles, and method of making the same A process for producing a phenol-aldehyde (e.g., cresol-aldehyde) resin that is modified with a dihydroxybenzene compound. The resin may form a binder system when combined with a curing agent which includes an additional source of an aldehyde. The resin a... | 05/26/1998 |
| 5686506 | Mixtures of phenolic novolaks for use with refractory aggregate and methods for making same A binder solution of a phenolic novolak resin in solvent, preferably furfuryl alcohol containing at least one chemical agent such as amines containing one to five, preferably two to four, nitrogen atoms, glycerine or mixtures thereof. Preferably, the bind... | 11/11/1997 |
| 5684115 | (Co)polycarbonate composition containing boric acid and a basic catalyst A processes for producing a (co)polycarbonate having a low terminal hydroxyl group concentration and being excellent in heat resistance and hue, which comprises melt-polycondensing a dihydroxy compound with a carbonic diester in the presence of a catalyst... | 11/04/1997 |
| 5684114 | Cross-catalyzed phenol-resorcinol adhesive A two-part adhesive is provided wherein the first part comprises a stable aqueous alkaline monohydroxylic phenolic resole resin solution containing a methylene donor such as oxazolidine or a methylolurea and the second part comprises a stable resorcinolic... | 11/04/1997 |
| 5681916 | Process for producing urea-modified, highly reactive phenolic resins useful as bonding agents for center-layer particles in the manufacture of particleboard Urea-modified, highly reactive phenolic resins useful as center-layer bonding agents in the manufacture of particleboard are provided by condensing phenol and formaldehyde until shortly before gelation takes place such that, after addition of urea, relati... | 10/28/1997 |
| 5637658 | Modified phenol-aldehyde resin and binder system A process for the production of a modified phenol-aldehyde resin which may form a binder system when combined with a curing agent which includes an additional source of an aldehyde, e.g., a phenol-formaldehyde resin. The inventive phenol-aldehyde resin ma... | 06/10/1997 |
| 5629083 | Method of manufacturing cellulosic composite and product thereof A process for the production of modified phenol-aldehyde resins includes the use of a modifier selected from melamine, urea, and other suitable nonvolatile organic compounds. The phenolic component of the resins preferably includes a difunctional phenolic... | 05/13/1997 |
| 5623032 | Low-volatile and strongly basic tertiary amino alcohols as catalyst for the manufacture of improved phenolic resins A process for preparing ashless and low-ash phenolic resole resins having no amine odor, and a process for preparing storage-stable mixtures or premix solutions of phenol-formaldehyde resin and urea or unrea-formaldehyde resins. These processes react phen... | 04/22/1997 |
| 5594098 | Metal ion reduction in novolak resins and photoresists The present invention provides methods for producing water insoluble, aqueous alkali soluble novolak resins having a very low level of metal ions, utilizing treated ion exchange resins. A method is also provided for producing photoresist composition havin... | 01/14/1997 |
| 5580949 | Metal ion reduction in novolak resins and photoresists The present invention provides methods for producing water insoluble, aqueous alkali soluble novolak resins having a very low level of metal ions, utilizing treated ion exchange resins. A method is also provided for producing photoresist composition havin... | 12/03/1996 |
| 5470924 | Phenol formaldehyde resins A process for forming a phenol formaldehyde resin including the steps of: (i) forming a first additive including a glycol and an aromatic dicaborxylic acid; (ii) adding said first additive as well as an alpha hydroxy acid to a first resin component compri... | 11/28/1995 |
| 5451657 | Phenolic resol plywood resin, manufacture and use An aqueous phenol-formaldehyde resin solution with formaldehyde-phenol mol ratio in the range of 1.8 to 2.8, polymerization catalyst of 3% to 9% by weight, measured as NaOH equivalent, with less than 1% by weight potassium hydroxide, and about 0.1% to abo... | 09/19/1995 |
| 5359024 | Process for the preparation of a phenol-formaldehyde resin The invention relates to a process for the preparation of a phenol-formaldehyde resin by causing phenol and formaldehyde to condense under the influence of a basic catalyst, the catalyst being an aqueous solution containing alkali metal ions, carbonate io... | 10/25/1994 |
| 5342880 | Phenolic resol plywood resin, manufacture and use An aqueous phenol-formaldehyde resin solution with formaldehyde-phenol mol ratio in the range of 1.8 to 2.8, polymerization catalyst of 3% to 9% by weight, measured as NaOH equivalent, with less than 1% by weight potassium hydroxide, and about 0.1% to abo... | 08/30/1994 |
| 5260406 | Phenolic stain-resists using mercaptocarboxylic acid A stain-resist agent for polyamide fibers, its preparation and use are disclosed. The stain-resist agent is the condensation product of bis-hydroxyphenylsulfone with 0.5 to 1.0 mole of formaldehyde, per mole of bis-hydroxyphenylsulfone, and 0.15 to 1.5 mo... | 11/09/1993 |
| 5254664 | Curing composition A reaction of the compound (A) having at least two 2-oxazoline groups with the compound (B) having at least two functional groups of one or a plural kind selected from the group consisting of an aromatic hydroxyl group, an amino group and a thiol group pr... | 10/19/1993 |
| 5182357 | Storage stable 100% solids high ortho phenol formaldehyde hot melt adhesives One hundred percent thermosetting phenol/formaldehyde (P/F) resin and method of preparation thereof are disclosed. The resin comprises a molar ratio of F/P of about 1.2-1.7, has a softening point of about 80° C. and cures at temperature of about 140°-16... | 01/26/1993 |
| 5093385 | Method of accelerating photoiniferter polymerization, polymer produced thereby, and product produced therewith The invention relates to an accelerated photoiniferter polymerization method which involves the addition of a polymerization accelerating amount of a at least one metal compound accelerator during the photoiniferter polymerization process. Preferably, the... | 03/03/1992 |
| 5079332 | Fast curing phenolic resin for making plywood A phenol-formaldehyde resole resin solution useful in adhesives for preparing wood laminates from a plurality of wood veneers, prepared by reacting at least an equal molar amount of formaldehyde with phenol in the presence of sodium hydroxide and a water-... | 01/07/1992 |
| 5074946 | Wood bending methods employing fast curing phenolic resins It has now been found that when there is a partial or complete replacement of the sodium hydroxide that is used to make a sodium phenolate resole resin by a molar equivalent of potassium hydroxide, a far faster curing resin is obtained. Such potassium-mod... | 12/24/1991 |
| 5071940 | Curing agent mixture for curing alkaline phenol/formaldehyde resins A curing agent mixture for curing alkaline phenol/formaldehyde resins contains A) a pulverulent or fibrous filler and B) a carbonic ester.... | 12/10/1991 |
| 5057591 | Foamability of phenolic resins The invention is a solution of highly advanced phenolic resin with improved inherent foamability that is made from the reaction of phenol, aldehyde, water and alkali the improved foamability being brought about by the incorporation of up to 1.0% by weight... | 10/15/1991 |
| 5043412 | Ambient temperature curing, high carbon contributing compositions A raw batch composition for use in making a shaped article such as a foundry shape or refractory article is disclosed. The composition comprises a mixture of an aggregate material; a phenol formaldehyde novolak resin; a phenol formaldehyde resole resin; a... | 08/27/1991 |
| 4857207 | Process for reducing the phenol content in phenol-containing waters A process for the purification of phenol-containing waters, in particular waste waters from phenolic resin production, where the term "phenol" is taken to mean all steam-volatile benzene derivatives according to DIN 38,409 H 16, by reaction of the phenol ... | 08/15/1989 |
| 4848443 | Preparation of foundry molds or cores Foundry molds and cores are prepared by using as a binder a phenolic resin in solution in aqueous sodium hydroxide and using an ester to cure the binder. The ester may be incorporated in the mixture prior to shaping, or the ester in gaseous form may be pa... | 07/18/1989 |
| 4841002 | Liquid aromatic bisoxazoline and disoxazine monomer mixtures cured with polyphenolic compounds Compositions have melting points below 100° C. which are useful in the formation of resins by reaction with polyphenolic compounds consisting of a mixture of more than two compounds having the formula ##STR1## wherein A represents a cyclic or acycli... | 06/20/1989 |
| 4839446 | Thermosetting bis oxazoline-polyphenol based resins for resin transfer molding which contain a monooxazine or monooxazoline diluent A polymerizable thermosetting composition which is a flowable liquid at moderate temperatures which comprises a mixture of: (A) from about 75% to about 95% by weight of a mixture of: (1) from about 80% to about 20% by weight of a bisoxazoline and (2) from about 20%... | 06/13/1989 |
| 4785073 | Melamine-phenol-formaldehyde resole modified by glycols moulding composition A series of melamine-phenol-formaldehyde resoles for pressure-free to low pressure, low/medium temperture conversion into moulded product. The molar ratio of melamine:phenol is the range 1:4.7 to 1:0.29; for each mole of melamine there are 1.5 to 3 moles ... | 11/15/1988 |
| 4758478 | Fast curing phenolic resins and bonding methods employing same It has now been found that when there is a partial or complete replacement of the sodium hydroxide that is used to make a sodium phenolate resole resin by a molar equivalent of potassium hydroxide, a far faster curing resin is obtained. Such potassium-mod... | 07/19/1988 |
| 4661412 | Melamine-modified phenolic type resin for continuous lamination A fast-curing, melamine-modified phenolic laminating resin is described comprising the co-condensation product of aldehyde, phenol and melamine in a water-soluble organic solvent. The modified laminating resin exhibits sufficiently high penetration and cu... | 04/28/1987 |
| 4656239 | Process for the preparation of phenol formaldehyde resole resins The process described herein involves the gradual addition of aqueous formaldehyde, containing 35-60 percent by weight of formaldehyde, to a phenol maintained at a temperature of 60°-100° C., preferably 70°-90° C., and at a reduced pressure of 11-26 ... | 04/07/1987 |
| 4613662 | Process for catalytic preparation of poly(ether-amide) polymeric composition from oxazoline and polyphenol A process comprising copolymerizing an oxazoline with a bis-or poly-phenolic compound in the presence of a catalyst which is a cationic complex of an alkali or an alkaline earth metal at a temperature in the range of from about 100° to 200° C. is descri... | 09/23/1986 |
