公开(公告)号：EP0259537B1

公开(公告)日：1992-03-25

申请号：EP87102632.4

申请日：1987-02-25

Applicant: ATOCHEM NORTH AMERICA, INC. (a Pennsylvania corp.)

Inventor： Kamath, Vasanth R. ,  Palys, Leonard H.

IPC: C08F283/00 ,  C08F4/38 ,  C08F6/10 ,  C08G18/63

CPC classification number: C08F283/00 ,  C08F6/006 ,  C08G18/63

公开(公告)号：EP0259537A3

公开(公告)日：1990-02-07

申请号：EP87102632.4

申请日：1987-02-25

Applicant: ATOCHEM NORTH AMERICA, INC. (a Pennsylvania corp.)

Inventor： Kamath, Vasanth R. ,  Palys, Leonard H.

IPC: C08F283/00 ,  C08F4/38 ,  C08F6/10 ,  C08G18/63

CPC classification number: C08F283/00 ,  C08F6/006 ,  C08G18/63

Abstract: An improved process is provided for preparing stable low viscosity polymer-polyols containing less than about 100 ppm residual monomers by using a monoperoxycarbonate initiator in combination with at least one initiator selected from diperoxyketals and peroxyesters, as chaser catalysts, at or near the end of the polymerization. The polymer-polyols prepared by the instant invention can be used to prepare high resiliency (load bearing) polyurethane foams.

公开(公告)号：EP0273090B1

公开(公告)日：1992-03-18

申请号：EP87100025.3

申请日：1987-01-02

Applicant: ATOCHEM NORTH AMERICA, INC. (a Pennsylvania corp.)

Inventor： Kamath, Vasanth R.

IPC: C08F2/06

CPC classification number: C08F2/06

公开(公告)号：EP0273090A1

公开(公告)日：1988-07-06

申请号：EP87100025.3

申请日：1987-01-02

Applicant: ATOCHEM NORTH AMERICA, INC. (a Pennsylvania corp.)

Inventor： Kamath, Vasanth R.

IPC: C08F2/06

CPC classification number: C08F2/06

Abstract: A process is provided for the free radical polymerization of monomers derived from substituted or unsubstituted acrylic acid/methacrylic acid and esters thereof for the production of a polymer having a narrow molecular weight distribution and an average molecular weight of less than 4000. These polymers are produced by the solution polymerizing of said monomers wherein 20-40% by weight of the monomer composition is hydroxyalkyl acrylate or methacrylate in the presence of a solvent system suitable for high solids coating applications and in the presence of an initiating amount of a tertiary alkyl hydroperoxide and/or its derivatives having at least 5 carbons wherein the initiator and monomers, alone or in combination, are added continuously at a programmed rate wherein the rate of addition corresponds approximately to the rate of decomposition of said monomer and initiator. These polymers are used for high solids coating applications.

Abstract translation: 提供了用于自由基聚合衍生自取代或未取代的丙烯酸/甲基丙烯酸及其酯的单体的方法，用于生产具有窄分子量分布和小于4000的平均分子量的聚合物。制备这些聚合物 通过所述单体的溶液聚合，其中20-40重量％的单体组合物是丙烯酸羟烷基酯或甲基丙烯酸羟烷基酯，在适用于高固体涂料应用的溶剂体系存在下和在引发量的叔烷基氢过氧化物的存在下，和 /或其衍生物具有至少5个碳，其中单独或组合的引发剂和单体以编程速率连续加入，其中加入速率大致对应于所述单体和引发剂的分解速率。 这些聚合物用于高固体涂料应用。

公开(公告)号：EP0259537A2

公开(公告)日：1988-03-16

申请号：EP87102632.4

申请日：1987-02-25

Applicant: ATOCHEM NORTH AMERICA, INC. (a Pennsylvania corp.)

Inventor： Kamath, Vasanth R. ,  Palys, Leonard H.

IPC: C08F283/00 ,  C08F4/38 ,  C08F6/10 ,  C08G18/63

CPC classification number: C08F283/00 ,  C08F6/006 ,  C08G18/63

Abstract: An improved process is provided for preparing stable low viscosity polymer-polyols containing less than about 100 ppm residual monomers by using a monoperoxycarbonate initiator in combination with at least one initiator selected from diperoxyketals and peroxyesters, as chaser catalysts, at or near the end of the polymerization. The polymer-polyols prepared by the instant invention can be used to prepare high resiliency (load bearing) polyurethane foams.

Abstract translation: 提供了一种改进的方法，用于通过使用单过氧碳酸酯引发剂与至少一种选自二过氧缩酮和过氧酯的引发剂组合作为催化剂催化剂来制备含有少于约100ppm残留单体的稳定的低粘度聚合物 - 多元醇， 聚合。 本发明制备的聚合物 - 多元醇可用于制备高弹性（负荷）聚氨酯泡沫。