公开(公告)号：US3960819A

公开(公告)日：1976-06-01

申请号：US447992

申请日：1974-03-04

Applicant: Eileen Jones ,  Arthur Morris ,  Ieuan Thomas ,  James Rodney Traynor

Inventor： Eileen Jones ,  Arthur Morris ,  Ieuan Thomas ,  James Rodney Traynor

IPC: C08G69/26 ,  C08G69/28

CPC classification number: C08G69/26 ,  C08G69/28

Abstract: Melt polycondensation of bis(aminophenyl)sulphone with dicarboxylic acid, especially aliphatic dicarboxylic acid, using as catalyst a specified Group VB compound, or metal salt or complex thereof. Typical catalysts are phosphinates or phosphonates in admixtures with metal salts.

Abstract translation: 双（氨基苯基）砜与二羧酸，特别是脂族二羧酸的熔融缩聚，使用规定的VB族化合物作为催化剂，或其金属盐或络合物。 典型的催化剂是与金属盐混合的次膦酸盐或膦酸盐。

公开(公告)号：US4089763A

公开(公告)日：1978-05-16

申请号：US667866

申请日：1976-03-17

Applicant: Edward Charles Dart ,  John Burnett Cantwell ,  James Rodney Traynor ,  Joseph Franciszek Jaworzyn ,  Jozef Nemeck

Inventor： Edward Charles Dart ,  John Burnett Cantwell ,  James Rodney Traynor ,  Joseph Franciszek Jaworzyn ,  Jozef Nemeck

IPC: A61K6/09 ,  C08F2/46 ,  C08F4/00

CPC classification number: A61K6/09 ,  Y10S430/107 ,  Y10S430/119 ,  Y10S522/908 ,  Y10S525/92

Abstract: A method of repairing teeth which comprises applying to the teeth a composition comprising (a) an inert, translucent, inorganic particulate filler (b) a polymerizable material comprising a polymerizable prepolymer containing at least two polymerizable ethylenically unsaturated groups and being the reaction product of a urethane prepolymer and a polymerizable ethylenically unsaturated monomer reactive with the urethane prepolymer; the urethane prepolymer being the reaction product of a diisocyanate and a diol; up to 100% by weight of the polymerizable prepolymer of a liquid ethylenically unsaturated monomer which is copolymerizable with the polymerizable prepolymer; and from 0.01 to 10% by weight of the polymerizable material of a photosensitive catalyst capable of curing the composition on exposure to visible light and comprising a photosensitizer selected from fluorenone and an .alpha.-diketone of the formula A.CO.CO.A, wherein the groups A are aliphatic, aromatic, cycloaliphatic, aralkyl or alkaryl, or together form a divalent aliphatic or aromatic group which together with the carbonyl groups forms a cyclic structure, and a reducing agent capable of reducing the photosensitizer when the photosensitizer is in an excited state, and curing the composition by irradiating the composition with visible radiation in the range 400 m.mu. to 500 m.mu..

Abstract translation: 一种修复牙齿的方法，其包括向所述牙齿施加组合物，所述组合物包含（a）惰性，半透明的无机颗粒填料（b）可聚合材料，所述可聚合材料包含含有至少两个可聚合的烯键式不饱和基团的可聚合预聚物， 氨基甲酸酯预聚物和与氨基甲酸酯预聚物反应的可聚合烯属不饱和单体; 氨基甲酸酯预聚物是二异氰酸酯和二醇的反应产物; 高达100重量％的与可聚合预聚物共聚的液态烯属不饱和单体的可聚合预聚物; 和0.01至10重量％的能够在暴露于可见光下固化组合物的光敏催化剂的可聚合材料，并且包含选自芴酮和式A.CO.CO.A的α-二酮的光敏剂，其中 基团A是脂族，芳族，脂环族，芳烷基或烷芳基，或者一起形成与羰基一起形成环状结构的二价脂族或芳族基团，以及当光敏剂处于激发态时能够还原光敏剂的还原剂 并且通过用400μm至500μm的范围的可见光辐射该组合物来固化该组合物。