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| Number | Title | Issue Date |
| 7872088 | Low formaldehyde emission fiberglass Disclosed are binders including urea-extended phenol-formaldehyde alkaline resole resins to which melamine-containing resin has been added, and non-woven fiber compositions made therewith. The disclosed binders may be cured to low formaldehyde-emission and low trime... | 01/18/2011 |
| 7759448 | Simplified method for production of phenolic resole resin with high molecular weight fraction Process including steps (a.) through (c.). Step (a.) involves providing a mixture of 41-47 parts by weight phenol component and 54-58 parts by weight formaldehyde. The phenol component in this step is approximately ⅓ by weight para-phenylphenol and ⅔ by weight p... | 07/20/2010 |
| 7718752 | Process for producing resorcinol-formalin resin A process for producing a resorcinol-formalin resin containing no salts, having a moderate flowability when transformed into an aqueous solution, and having a reduced content of resorcinol monomer and a reduced content of resorcinol-formalin resin of resorcinol pent... | 05/18/2010 |
| 7378484 | Toughness-increased phenolic resin and preparation thereof A phenolic resin that increases its toughness by polydimethylsiloxane and a process of preparing the same is provided. Polydimethylsiloxane is added as a coupling agent in a γ-glycidoxypropyltrimethoxysilane-modified phenolic resin to improve the compatibility betw... | 05/27/2008 |
| 7345136 | Water-resistant vegetable protein adhesive dispersion compositions Water-resistant, protein-based adhesive dispersion compositions and methods for preparing them are provided. The adhesive dispersions are prepared by copolymerizing a denatured vegetable protein, such as soy flour, that has been functionalized with methylol groups w... | 03/18/2008 |
| 7321020 | Polycondensation products and a process for their preparation The invention relates to the polycondensation products produced by reaction of bisphenol residues from bisphenol production with an aldehyde in an acidic medium useful for the production of refractory molded bodies, of unmolded substances used in the refractory indu... | 01/22/2008 |
| 7196156 | Flexibilized resorcinolic novolak resins and method of making same A flexibilized resorcinolic novolak resin is prepared by reacting a phenolic compound, such as resorcinol, with an unsaturated dihydroxy, an unsaturated aldehyde, an aliphatic dialdehyde, or a mixture thereof. An aldehyde (different from the unsaturated aldehyde and... | 03/27/2007 |
| 7135539 | Novolac resins, process for preparing them and uses thereof The present invention relates to novel novolac resins obtained by coupling at least one aromatic compound (A) comprising at least two hydroxyl groups and at least one aldehyde (B) in the presence of an acid catalyst and in the presence of water and/or an organic sol... | 11/14/2006 |
| 7041772 | Method for producing benzoxazine resin The present invention discloses a process for producing a benzoxazine resin which comprises the steps of reacting a phenol compound, an aldehyde compound and a primary amine in the presence of an organic solvent to synthesize a benzoxazine resin and removing generat... | 05/09/2006 |
| 6921842 | Hydrogenated aromatic oligomers and process for preparing the same The hydrogenated aromatic oligomer of this invention is represented by the following formula (1) (A-F)n-A (1) (wherein A is a segment comprising mainly a polycyclic aromatic compound, a phenol and at least partly hydrogenated prod... | 07/26/2005 |
| 6906168 | Process for fractionation/concentration to reduce the polydispersivity of polymers Methods of reducing the amount of undesirable by-products in the production of polymers are disclosed. The resulting polyetherimides have lower polydispersivity and enhanced thermomechanical properties. In some embodiments, cyclic and low molecular weight linear oli... | 06/14/2005 |
| 6831146 | Resin composition for use in manufacturing wet friction materials and wet friction material A resin composition for wet friction materials contains as a main component a phenolic resin formed as a result of the reaction between phenols and aldehydes in the presence of a basic catalyst, and a particulate filler having a specific surface area of 35 to 410 m | 12/14/2004 |
| 6821530 | Polymer composite compositions The invention relates to methods of treating mixtures containing polymeric materials, e.g., collagen, to form a polymer that intercalates into the polymeric material. The treatment provides greater tensile strength to the mixture, among other advantages. The polymer... | 11/23/2004 |
| 6806343 | Method of preparing a stable, low pH phenolic resin A phenol-formaldehyde resole resin for use as a binder for glass fibers is acidified to a pH of 3 or less after base-catalyzed resinification. An increase in actual solids is observed compared with neutralized resin. Phenol-formaldehyde-urea-ammonia resins are surpr... | 10/19/2004 |
| 6770107 | Abrasive-filled thermoset composition and its preparation, and abrasive-filled articles and their preparation A curable resin composition comprises a poly(arylene ether), an acryloyl monomer, an allylic monomer, and an abrasive filler. The composition tolerates high filler contents, cures rapidly, and exhibits excellent toughness after curing. Useful articles prepared from ... | 08/03/2004 |
| 6749765 | Aperture fill Disclosed are compositions and methods for providing substantially planarized surfaces in the manufacture of electronic devices. Also disclosed are compositions and methods for protecting apertures in the manufacture of electronic devices. ... | 06/15/2004 |
| 6730770 | Method of preparing a higher solids phenolic resin A phenol-formaldehyde resole resin for use as a binder for glass fibers is acidified with sulfamic acid to a pH of 3 or less after base-catalyzed resinification. An increase in actual solids observed compared with neutralized resin, reflecting a desired improvement ... | 05/04/2004 |
| 6713591 | Aromatic oligomer and use thereof This invention relates to an aromatic oligomer represented by the following formula (1): (A—F)n—A (1) wherein A is a unit comprising (a) 30-90 wt % of a bicyclic or tricyclic aromatic compound and (b) 10-70 wt % of a phenol... | 03/30/2004 |
| 6706845 | Low formaldehyde emission phenol-formaldehyde resin and method for manufacture thereof Phenol formaldehyde resins that have low free formaldehyde when produced, that maintain their low free formaldehyde levels during storage, and that demonstrate low levels of formaldehyde emissions during processing, curing, and thereafter. ... | 03/16/2004 |
| 6699958 | Colorless phenol-formaldehyde resins that cure colorless The present invention is directed to compositions and a process leading to colorless or light colored aqueous phicinol-formaldelhyde resoles. Unlike previous technologies, these compositions lead to clear storage stable fast curing, high molecular weight ... | 03/02/2004 |
| 6646094 | Low emission formaldehyde resin and binder for mineral fiber insulation A phenol-formaldehyde resole resin is prepared using a high level of catalyst at a polymerization temperature of about 63° C. The endpoint, measured by salt water tolerance, is selected so that the resulting resin has a water dilutability of 20:1 at neut... | 11/11/2003 |
| 6642345 | Novolak aralkyl resin, preparation process thereof and composition containing said resin Preparation process for a novolak aralkyl resin having excellent heat resistance and curing property by reacting 0.4 to 0.8 mol of an aralkyl compound based on one mol of the low molecular weight novolak containing 90% by weight or more of bi-nuclear novo... | 11/04/2003 |
| 6620901 | High carbon yield phenolic resole A high-carbon-yield resole by reacting formaldehyde and excess phenol to an endpoint and then cross-linking with HMTA. Similar high-carbon-yield resoles result with addition of DBE-2, furfuryl alchol and furfural.... | 09/16/2003 |
| 6608162 | Spray-dried phenol formaldehyde resins The invention relates to formulations and methods of manufacturing spray-dried phenol-formaldehyde resin that contain highly reactive phenolic compounds that include resorcinol, alkyl resorcinols, meta-amino phenol or/and phloroglucinol. The powder resin ... | 08/19/2003 |
| 6593391 | Abrasive-filled thermoset composition and its preparation, and abrasive-filled articles and their preparation A curable resin composition comprises a poly(arylene ether), an acryloyl monomer, an allylic monomer, and an abrasive filler. The composition tolerates high filler contents, cures rapidly, and exhibits excellent toughness after curing. Useful articles pre... | 07/15/2003 |
| 6565960 | Polymer composite compositions The invention relates to methods of treating mixtures containing polymeric materials, e.g., collagen, to form a polymer that intercalates into the polymeric material. The treatment provides greater tensile strength to the mixture, among other advantages. ... | 05/20/2003 |
| 6541576 | Composition and method for curing a resorcinol resin A catalyst curing system or hardener for resorcinolic resins, such as resorcinol-formaldehyde or phenol-resorcinol-formaldehyde resins including methylolurea. The methylolurea may be used in combination with oxazolidine in ratios ranging from 5:95 to 95:,... | 04/01/2003 |
| 6482946 | High char yield benzoxazine compositions A high char yield polybenzoxazine is formed by mixing (i) a benzoxazine compound, (ii) a furan compound, (iii) a benzoxazine-furan compound or combinations thereof, wherein the mixture has a benzoxazine ring to furan ring ratio from about 0.001 to about 1... | 11/19/2002 |
| 6461717 | Aperture fill Disclosed are compositions and methods for providing substantially planarized surfaces in the manufacture of electronic devices. Also disclosed are compositions and methods for protecting apertures in the manufacture of electronic devices.... | 10/08/2002 |
| 6441122 | Melamine in urea-extended phenol/formaldehyde fiberglass binders Urea-extended phenol/formaldehyde alkaline resole binders suitable for fiberglass and having a high binding efficiency are disclosed. These binders are prepared by adding a minor quantity of melamine in an amount such that the binder solution contains no ... | 08/27/2002 |
| 6372878 | Resols, process for their production and use Resols modified with organic phosphonic acids and/or phosphinic acids or their alkali and/or alkaline-earth metal salts obtained by reacting phenolic compounds and aldehyde in an alkaline medium in a molar ratio of the phenolic compounds to the aldehyde i... | 04/16/2002 |
| 6326453 | Process for producing phenol resin A novolak-type phenol resin with less unreacted phenol and a narrow molecular weight distribution is produced in high yield by reaction of a phenol with an aldehyde using an organophosphonic acid as a catalyst, while keeping a water concentration of react... | 12/04/2001 |
| 6320013 | Process for producing modified phenolic resin A process for producing a modified phenolic resin, comprising heating a heavy oil or pitch of given average molecular weight and, per mol, calculated from the average molecular weight, of the heavy oil or pitch; 0.3 to 25 mol, in terms of formaldehyde, a ... | 11/20/2001 |
| 6268459 | Method for preparing melamine Method for preparing melamine from urea via a high-pressure process in which solid melamine is obtained by transferring the melamine melt coming from the reactor to a vessel where the melamine melt is cooled with an evaporating cooling medium. The melamin... | 07/31/2001 |
| 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 |
| 6207789 | Phenolic resin, resin composition, molding material for encapsulation, and electronic component device The present invention provides a resin containing in the backbone chain a structural unit represented by the following Formula (I) or (II), as a novel phenolic resin having a high Tg, a low moisture absorption, a low molding shrinkage, high adhesive prope... | 03/27/2001 |
| 6160079 | Activated arylamine-based polybenzoxazines Arylamines with electron donating groups such as alkyl and alkoxy groups in the meta position on the aromatic ring change the polymerization temperature of the benzoxazine prepared therefrom and offer an opportunity for an additional crosslinking site (th... | 12/12/2000 |
| 6139804 | Process for production of polyoxymethylene A process for producing a polyoxymethylene using a reactor having a discharging port having a weir, which process comprises introducing trioxane or a mixture of trioxane and a compound reactive therewith into the reactor from its feeding port and continuo... | 10/31/2000 |
| 6100364 | Water-reducible phenolic binders, methods of preparation and coating systems A water-reducible binder for coatings comprises the reaction products of a) a phenolic resin comprising the reaction product of bisphenol A, t-butyl phenol and formaldehyde; b) an alkylene carbonate alkoxylating agent; c) a diol selected form the group co... | 08/08/2000 |
| 6087467 | Rigid-rod polymers Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the po... | 07/11/2000 |
