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| Number | Title | Issue Date |
| 4174359 | Flame retardant polycarbonate polyblends The present invention pertains to a halogen-containing, copolycarbonate blend having improved critical thickness and flammability properties comprising an aromatic copolycarbonate comprising the reaction product of an aromatic diphenol, an aromatic thiodi... | 11/13/1979 |
| 4174240 | Novel transparent polyurethane polyureas for lamination of glazing materials The present disclosure is concerned with a novel transparent polyurethane polyurea which is particularly suitable for lamination to glass and glasslike transparent plastics. The polymer is the reaction product of high molecular weight diols, optionally lo... | 11/13/1979 |
| 4173567 | Isocyanate derivatives of 1,3[oxazoles, oxazines, diazoles and diazines] The present invention relates to a new organic heterocyclic isocyanate which is the reaction product of an organic diisocyanate and an amino or hydroxy nitrile. The invention also relates to a process of producing such isocyanates by reacting an excess of... | 11/06/1979 |
| 4171419 | Cartridge for securing stay bars in bore holes containing a polyisocyanate component in one compartment and a polyol containing tertiary amine nitrogen in another compartment The present invention relates to a two-compartment cartridge which is suitable for securing stay bars in bore holes by means of polyurethane resins and which is destructible by the stay bar, containing a polyisocyanate component on the one hand and a poly... | 10/16/1979 |
| 4166149 | Novel transparent polyurethane polyureas for lamination of glazing materials The present disclosure is concerned with a novel transparent polyurethane polyurea which is particularly suitable for lamination to glass and glasslike transparent plastics. The polymer is the reaction product of high molecular weight diols, optionally lo... | 08/28/1979 |
| 4152350 | Process for the preparation of polyisocyanates containing biuret groups This invention relates to an improved process for the preparation of polyisocyanate mixtures containing biuret groups by the reaction of organic diisocyanates with compounds which react with isocyanate groups to form biuret groups, to the polyisocyanate m... | 05/01/1979 |
| 4150213 | Process for the production of polyisocyanate polyaddition products which comprises reacting organic polyisocyanates, polycyclic condensation products of formaldehyde with diamines, and water The present invention relates to a process for the production of polyisocyanate polyaddition products by reacting organic polyisocyanates with compounds which give off organic diamines under the hydrolytic influence of water and also with water, optionall... | 04/17/1979 |
| 4147714 | Process for the preparation of polyisocyanates which contain biuret groups This invention relates to an improved process for the preparation of polyisocyanates which contain biuret groups by the direct reaction of polyamines in vapor form with polyisocyanates.... | 04/03/1979 |
| 4139674 | Novel transparent polyurethane polyureas for lamination of glazing materials The present disclosure is concerned with a novel transparent polyurethane polyurea which is particularly suitable for lamination to glass and glasslike transparent plastics. The polymer is the reaction product of high molecular weight diols, optionally lo... | 02/13/1979 |
| 4139517 | Transparent pigmented polycarbonate container The present invention pertains to a reusable, transparent; pigmented, polycarbonate container which selectively filters out the portion of the visible spectrum of from about 380 to 550nm. In a preferred embodiment, the pigmented, polycarbonate bottle is a... | 02/13/1979 |
| 4137360 | Microporous sheets and a process for making them A method is provided for making microporous, vapor-permeable polyurethane sheets by coagulating a polyurethane in a polar solvent with a non-solvent for the polyurethane, wherein a polyurethane polysiloxane is added to the solution of the polyurethane in ... | 01/30/1979 |
| 4116741 | Textile coating with polyurethanes This application relates to textile sheets which have been coated with polyurethanes and to a process for coating said textile sheets wherein a solution of polyurethane is applied as a top coat to a release substrate and then a bonding coat is applied bef... | 09/26/1978 |
| 4114382 | Process for the consolidation of geological formations and loosened rock and earth masses This invention concerns a method of consolidating geological formations, heaped rock and earth masses by applying a polyurethane reaction system to the material to be consolidated. The reaction system comprises a polyisocyanate component and a polyol comp... | 09/19/1978 |
| 4113705 | Triisocyanates useful for the production of polyurethane resins This invention relates to new liquid cycloaliphatic triisocyanates and to their use as isocyanate components for the production of polyurethane resins by the known isocyanate polyaddition process.... | 09/12/1978 |
| 4113014 | Process for reinforcing geological formations The present invention relates to a process for the reinforcement of geological formations and loose rock and earth masses by introducing, into the cavities of the geological formations or rock or earth masses which are required to be reinforced, reaction ... | 09/12/1978 |
| 4110273 | Blowing agent mixture The invention refers to a blowing agent composition consisting of 1,4 butan-diol-bis-(carbonic acid ester-benzoic acid anhydride) and silicon dioxide. Silicon dioxide reduces the decomposition temperature of the anhydride while at the same time increasing... | 08/29/1978 |
| 4108842 | Preparation of polyurethane ureas using as hardeners mixtures of water, amines, aldimines and ketimines The present invention relates to a process for the production of polyurethane ureas from a prepolymer which contains isocyanate groups and a mixture of hardeners containing amino groups, in the presence of water, and optionally in the presence of solvents... | 08/22/1978 |
| 4108814 | Aqueous polyurethane dispersions from solvent-free prepolymers using sulfonate diols This invention relates to a process for the production of water dispersible polyurethanes by reacting polyisocyanates with sulphonate group containing diols. The sulphonate diols have the general formula: ##STR1## WHEREIN A and B, which may be the sa... | 08/22/1978 |
| 4106898 | Leather tanning with oligourethanes This invention is concerned with a method of tanning or retanning leather or pelts by treating them with an aqueous liquor containing hydrophilic oligourethanes. The oligourethanes have a molecular weight of from 300 to 20,000 and they may be methylolated... | 08/15/1978 |
| 4106897 | Leather tanning with oligourethanes This invention is concerned with a method of tanning or retanning leather or pelts by treating them with an aqueous liquor containing water-soluble oligourethanes having ionic groups. The oligourethanes have a molecular weight of from 300 to 20,000 and th... | 08/15/1978 |
| 4105712 | Flame-resistant polycarbonate molding compositions Molding compositions having an oxygen index of greater than 0.30 based on high molecular weight aromatic polycarbonates containing 0.5-20% of organic fibers.... | 08/08/1978 |
| 4105641 | Process for the preparation of aliphatic polycarbonates and polyurethanes therefrom The present invention relates to a process for the preparation of polycarbonates which contain aliphatically bound hydroxyl groups by transesterification of aliphatic dihydroxy compounds with glycol carbonate, optionally in the presence of transesterifica... | 08/08/1978 |
| 4102859 | Stabilizer mixtures The present invention teaches mixtures of neutral esters of phosphorous acid with oxetane compounds and plastics stabilized by the incorporation of said mixtures. The present invention teaches a method of improving the retention of light transmission in p... | 07/25/1978 |
| 4101578 | Cycloaliphatic triamines This invention relates to new cycloaliphatic triamines which are valuable intermediate products for synthetic resins, above all for lightfast and weather resistant polyurethane resins and in particular for solvent-free or low solvent polyurethane lacquers... | 07/18/1978 |
| 4101530 | Process for the production of polyisocyanate mixtures containing blocked isocyanate groups This invention relates to a process for the production of new polyisocyanate mixtures containing blocked isocyanate groups, to binders containing these polyisocyanate mixtures and to the use of the new polyisocyanate mixtures as an isocyanate component in... | 07/18/1978 |
| 4100130 | Flame-resistant polycarbonates The present invention relates to flame resistant aromatic polycarbonate molding compositions which are blends containing between about 0.1 to 15 wt.% of sulphur. The blends of the present invention may also contain up to about 30 wt.% of glass fibers. The... | 07/11/1978 |
| 4098933 | Process for the production of water-soluble or water-dispersible blocked polyisocyanates This invention relates to a process for producing stable water dispersible blocked polyisocyanates, the compounds so produced and their use in producing coatings and films. These compounds are produced by blocking about 50 to 99.8 weight % of the isocyana... | 07/04/1978 |
| 4098754 | Process for the preparation of high molecular thermoplastic polycarbonates of low flammability The present invention is concerned with a process for the production of high molecular weight thermoplastic ppolycarbonates having improved flame resistance and in conjunction with glass fibres, improved mechanical properties and the polycarbonates so pro... | 07/04/1978 |
| 4097435 | Glass-filled polycarbonate of improved ductility A glass-fiber reinforced aromatic polycarbonate is provided with improved ductility and improved mold release properties which is comprised of an aromatic polycarbonate resin, glass-fibers and an ester wax of montanic acid.... | 06/27/1978 |
| 4080371 | Process for the production of , , , ', ' , '-hexakisaryl-1,3- and -1,4-dimethyl benzenes The present invention relates to a process of producing , , , ', ', '-hexakisaryl-1,3- and -1,4-dimethyl benzenes by reacting , , ', '-tetrakisaryl-1,3 or -1,4-bis-(chloromethyl)- or -b... | 03/21/1978 |
| 4075119 | Statistical mixtures of halogenated bisphenols with halogen-free bisphenols The invention relates to statistical mixtures of halogenated bisphenols with halogen-free bisphenols and to processes for their preparation. This invention further relates to new aromatic, bromine-containing and/or chlorine-containing, high-molecular weig... | 02/21/1978 |
| 4073769 | Esters of phosphorous acid Phosphites of the general formula: ##STR1## in which N1 IS AN INTEGER; n2 is 0 or an integer; n3 is an integer; At least one of the groups R is an oxetane group as hereinafter defined or a hydrocarbon radical being subs... | 02/14/1978 |
| 4070330 | High impact mineral filled polycarbonates High impact mineral filled polycarbonates are comprised of a polycarbonate resin of a novaculite mineral filler having an average particle size of less than 5 microns. The percentage of novaculite is based on the total weight of the polycarbonate resin an... | 01/24/1978 |
| 4066617 | Stabilized poly(alkylene terephthalates) Poly(alkylene terephthalates) are stabilized during high temperature processing by neutral esters of phosphorous acid having at least one oxetane group. The stabilized poly(alkylene terephthalates) are resistant to molecular weight degradation and discolo... | 01/03/1978 |
| 4065436 | Thermoplastic polycarbonate moulding compositions with improved ease of mould release The invention relates to a thermoplastic moulding composition comprising a thermoplastic aromatic polycarbonate based on an aromatic dihydroxy compound and containing 0.01 to 0.5% by weight of an ester of a saturated aliphatic carboxylic acid with 10 to 2... | 12/27/1977 |
| 4065401 | Blowing agent mixture The invention refers to a blowing agent composition consisting of 1,4 butan-diol-bis-(carbonic acid ester-benzoic acid anhydride) and silicon dioxide. Silicon dioxide reduces the decomposition temperature of the anhydride while at the same time increasing... | 12/27/1977 |
| 4061691 | Flame-resistant polycarbonate molding compositions Molding compositions having an oxygen index of greater than 0.30 based on high molecular weight aromatic polycarbonates containing 0.5-20% of organic fibers.... | 12/06/1977 |
| 4056504 | Polycarbonate molding compositions The present invention is concerned with polycarbonate molding resins with improved flow and strength properties which contain about 10 to 40 wt.% glass fibers and about 0.5 to 5 wt. % of polyalkylene glycol terephthalate or about 0.5 to 10 wt.% of polyalk... | 11/01/1977 |
| 4055611 | Short glass fibers covered with polymeric materials This invention provides spheres of high molecular weight thermoplastics filled with short glass fibers which may be easily metered, incorporated into thermoplastic resins or fused into glass mats or shaped articles. It also provides a method of producing ... | 10/25/1977 |
| 4054597 | Thiodiglycol polycarbonates The present invention relates to an interfacial process for the production of polycarbonates having terminal, aliphatically bonded hydroxyl groups by reacting predominantly dihydric alcohols with phosgene or chlorocarbonic acid esters of predominantly dih... | 10/18/1977 |
