公开(公告)号：US3853795A

公开(公告)日：1974-12-10

申请号：US37883473

申请日：1973-07-13

Applicant: LAPORTE INDUSTRIES LTD

Inventor： JENKINS V ,  LEE S

IPC: C08G18/10 ,  C08G18/16 ,  C08G18/42 ,  C08G22/48

CPC classification number: C08G18/4277 ,  C08G18/10 ,  C08G18/165 ,  C08G2101/0066 ,  C08G2101/0083 ,  C08G18/3206 ,  C08G18/664

Abstract: High density polyurethane foam is prepared by a quasiprepolymer technique. A ''''prepolymer composition'''' is formed by polymerising an organic polyol with a polyisocyanate and then adding a relatively large quantity of organo-tin catalyst (0.02 to 1% by weight) thereto, and is then reacted with a ''''reactant mixture'''' comprising an organic polyol, a polylfunctional cross linking agent, a blowing agent and 0.01 to 4% by weight of tertiary amine catalyst. By distributing the two catalysts between the prepolymer compositions and the reactant mixture in this manner, the two liquid compositions are stable, but, when mixed, the catalyst acts synergistically to give extremely low demould times for the foam.

Abstract translation: 高密度聚氨酯泡沫通过准共聚技术制备。 通过将有机多元醇与多异氰酸酯聚合，然后向其中加入相对大量的有机锡催化剂（0.02-1重量％），然后与包含有机锡的“反应物混合物”反应形成“预聚物组合物” 多元醇，多官能交联剂，发泡剂和0.01〜4重量％的叔胺催化剂。 通过以这种方式将两种催化剂分散在预聚物组合物和反应物混合物之间，两种液体组合物是稳定的，但是当混合时，催化剂起协同作用，使泡沫体的脱模时间极低。

公开(公告)号：US3856716A

公开(公告)日：1974-12-24

申请号：US38456873

申请日：1973-08-01

Applicant: LAPORTE INDUSTRIES LTD

Inventor： JENKINS V ,  DOHERTY D

IPC: C08G18/10 ,  C08G18/42 ,  C08G22/48

CPC classification number: C08G18/4277 ,  C08G18/10 ,  C08G2101/0008 ,  C08G2101/0066 ,  C08G18/664

Abstract: Flexible high density polyurethane foam is produced by a quasiprepolymerisation technique in which a ''''prepolymer composition'''' which is obtained from a diisocyanate and a copolymer of an Epsilon -caprolactone, an epoxide and a monomeric diol chain initiator; is reacted with a ''''reactant mixture'''' which is a mixture of the copolymer and monomeric diol. The prepolymer composition and reactant mixture are stable, easily handled liquids which intermix easily and react quickly with each other, the presence of the diol in the reactant mixture facilitating mixing with the prepolymer composition to ensure good foam formation.

Abstract translation: 通过准预聚合技术制备柔性高密度聚氨酯泡沫，其中从二异氰酸酯获得的“预聚物组合物”和ε-己内酯，环氧化物和单体二醇链引发剂的共聚物; 与作为共聚物和单体二醇的混合物的“反应物混合物”反应。 预聚物组合物和反应物混合物是易于处理的液体，其易于混合并且彼此快速反应，二醇在反应混合物中的存在便于与预聚物组合物混合以确保良好的泡沫形成。

公开(公告)号：US3795701A

公开(公告)日：1974-03-05

申请号：US3795701D

申请日：1972-02-07

Applicant: LAPORTE INDUSTRIES LTD

Inventor： JENKINS V ,  BEEKEN M ,  PENNINGTON S

IPC: C08G18/42 ,  C08G59/62 ,  C08G63/08 ,  C08G65/04 ,  C08G65/18 ,  C08G65/22 ,  C08G65/26 ,  C08G17/007 ,  C08G17/017

CPC classification number: C08G63/08 ,  C08G18/4269 ,  C08G59/625 ,  C08G65/04 ,  C08G65/18 ,  C08G65/22 ,  C08G65/2645 ,  C08G65/2669

Abstract: A PROCESS FOR THE PRODUCTION OF A COPOLYMER COMPRISING OXYALKYNE AND CARBOXYALKYLENE UNITS. A LACTONE AND AN OXYALKYLENE AND CARBOXYALKYLENE UNITS. A LACTONE AND ENCEOF A CATALYST. THE LACTONE AD EPOXIDE ARE ADDED SIMULTANEOUSLY TO THE CHAIN INITIATOR AT SUCH RATES THAT EACH OF THE LACTONE AND THE EPOXIDE REACT WITH THE CHAIN INITIATOR OR GROWING CHAIN AT SUBSTANTIALLY CONSTANT RATE DURING THE TOTAL ADDITION.