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公开(公告)号：CA1079449A
公开(公告)日：1980-06-10
申请号：CA251914
申请日：1976-05-06
Applicant: UNION CARBIDE CORP
Inventor： SANDNER MICHAEL R , DUFFY ROBERT D
Abstract: Cellular urethane polymers are provided by effecting the reaction of an organic polyol reactant comprising a polyether polyol and an organic polyisocyanate reactant in the presance of a blowing agent and a catalyst system comprising a tertiary-dimethylamino ether mono-ol. In the dimethylamino ether mono-ols employed as catalysts in the practice of the invention, the tertiary-dimethylamino group and the hydroxyl group are positioned beta to a common acyclic ether oxygen atom or to different acyclic ether oxygen atoms which in turn are positioned beta to one another. The said dimethylamino ether mono-ols are versatile, low odor catalysts and are useful in forming cellular urethane polymers ranging from all water-blown flexible polyether foam to all fluorocarbon-blown rigid foam including semi-flexible and high-resilience foam products. Especially preferred for use in the practice of the invention are 2-(2-dimethylaminoethoxy)ethanol and 2-¢2-(2-dimethylaminoethoxy)ethoxy!ethanol either as such or in combination with other catalysts including other tertiary-amine components and/or organic compounds of tin. Also provided are blended catalyst systems comprising said dimethylamino ether mono-ols. 1.
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2.发明专利
公开(公告)号：CA1095489A
公开(公告)日：1981-02-10
申请号：CA343276
申请日：1980-01-08
Applicant: UNION CARBIDE CORP
Inventor： SANDNER MICHAEL R , DUFFY ROBERT D
Abstract: 9919-C-l CATALYST SYSTEM CONTAINING DIMETHLYAMINO ETHER MONO-OLS FOR POLYURETHANE FOAM FORMATION Cellular urethane polymers are provided by effecting the reaction of an organic polyol reaction comprising a polyether polyol and an organic polyisocyanate reaction in the presence of a blowing agent and a catalyst system comprising a tertiary-dimethlamino ether mono-ol. In the dimethylamino ether mono-ols employed as catalysts in the practice of the invention, the tertiary-dimethlamino group and the hydroxyl group are positioned beta to a common acyclic ether oxygen atom or to different acyclic ether oxygen atoms which in turn are positioned beta to one another. The said dimethylamino ether mono-ols are versatile, low odor catalyst and are uSeful in forming cellular urethane polymers ranging from all water-blown flezible polyether foam to all fluorocarbon-blown rigid foam including semi-flexible and high-resilience foam products. Especially preferred for use in the practice of the invention are 2-(2-dimethlaminoethoxy)ethanol and 2-¢2-(2-dimethylaminoethoxy)ethoxy!ethanol either as such or in combination with other catalyst including other tertiary-amine components and/or organic compounds of tin. Also provided are blended catalyst systems comprising said dimethylamino ether mono-ols. S P E C I F I C A T I O N 1.
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3.发明专利
公开(公告)号：CA1047686A
公开(公告)日：1979-01-30
申请号：CA254799
申请日：1976-06-14
Applicant: UNION CARBIDE CORP
Inventor： DUFFY ROBERT D , STOUT ELDON C
Abstract: This invention relates to novel polyurethane prepolymers which consist essentially of the reaction product of polyoxyalkylene polyol having a critical oxyethylene content and an isocyanate constituent, the reaction product having a defined level of free NCO. Particularly useful prepolymers are produced using a tolylene diisocyanate residue. The prepolymers provided have outstanding utility for rebonding polyurethane foams for applications such as, for example, carpet underlays and allow significant reductions in the adhesive level used in forming such rebonded foams and in the demolding cure times in comparison with presently used prepolymer adhesives. The prepolymers are also useful for applications in which polyurethane prepolymers are used presently such as, for example, in hydrophilic foams.
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