公开(公告)号：US3857876A

公开(公告)日：1974-12-31

申请号：US29983272

申请日：1972-10-24

Applicant: PHILLIPS PETROLEUM CO

Inventor： JONES F ,  WILLIAMS R ,  DOSS R

IPC: C08G63/688 ,  C08G75/26 ,  C08L63/00 ,  C07C149/20

CPC classification number: C08G75/26 ,  C08G63/688 ,  C08G63/6884 ,  C08L63/00 ,  C08L81/00

Abstract: A polyester-polysulfide-polythiol curing agent which is the reaction product of a polyol and a mixture of a mercaptoalkanoic acid and a thiodialkanoic acid. This curing agent is employed to cure epoxy resins.

Abstract translation: 聚酯 - 多硫化物 - 硫醇固化剂，其为多元醇与巯基链烷酸与硫代烷酸的混合物的反应产物。 该固化剂用于固化环氧树脂。

公开(公告)号：US3850886A

公开(公告)日：1974-11-26

申请号：US35502673

申请日：1973-04-27

Applicant: PHILLIPS PETROLEUM CO

Inventor： DOSS R

IPC: C08G63/688 ,  C08G65/334 ,  C08G75/14 ,  C08L31/04 ,  C08L81/04 ,  C08G23/20

CPC classification number: C08L81/04 ,  C08G63/6884 ,  C08G65/3342 ,  C08G75/14 ,  C08L31/04

Abstract: 1. A PROCESS FOR PRODUCING A POLYMERCAPTAN-TERMINATED POLYMERIC COMPOSITION CURABLE TO SEALANTS AND COATING FORMULATIONS HAVING IMPROVED PROPERTIES WHICH COMPRISES: (A) REACTING (1) A MERCAPTOALKANOIC ACID HAVING THE FORMULA HS(CR2)NCOOH WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL RADICALS HAVING FROM 1-5, INCLUSIVE, CARBON ATOMS, THE MAXIMUM NUMBER OF CARBON ATOMS IN ALL R GROUPS BEING 10, AND N IS AN INTEGER RANGING FROM 1-5, WITH (2) A THIODIALKANOIC ACID HAVING THE FORMULA HOOC(CR2)NS(CR2)NCOOH WHEREIN R AND N ARE AS DEFINED ABOVE, THE MAXIMUM BUMBER OF CARBON ATOMS IN ALL R GROUPS BEING 20, AND (39 A POLY(OXYALKYLENE)-POLYOL HAVING ON AVERAGE MORE THAN TWO PENDENT HYDROXY GROUPS PER MOLECULE AND A MOLECULAR WEIGHT IN THE RANGE 200-20,000, THE AMOUNT OF (3) PRESENT BEING IN THE RANGE 0.8-1.2 EQUIVALENTS OF PENDENT HYDROXY GROUPS ARE EACH EQUIVALENT OF CARBOXYLIC GROUPS OF THE MERCAPTOALKANOIC AND THIODIALKANOIC ACIDS, (B) NEUTRALIZING THE POLYMERCAPTAN-TERMINATED POLYMER THUS PRODUCED BY ADMIXING THEREWITH AN ALKALINE EARTH METAL HYDROXIDE IN AN AMOUNT SUFFICIENT TO REDUCE THE ACID NUMNER (MG. KOH/G. POLYMER) OF SAID POLYMER TO A VALUE LESS THAN ABOUT ONE, AND (C) FORMUATING THE NEUTRALIZED POLYMER WITHOUT SEPARATION OF THE ALKALINE EARTH METAL SALTS AND ANY UNREACTED ALKALINE EARTH METAL HYDROXIDE PRODUCED WITH NON-ELASTOMERIC COMPONENTS INCLUDING FILLERS, PLASTICIZERS, ANTIOXIDANTS, AND ADHESION PROMOTERS.

公开(公告)号：US3780097A

公开(公告)日：1973-12-18

申请号：US3780097D

申请日：1972-01-03

Applicant: PHILLIPS PETROLEUM CO

Inventor： DOSS R ,  KUPER D

IPC: C07C51/47 ,  C07C51/48 ,  C07C51/42

CPC classification number: C07C51/47 ,  Y02P20/582 ,  Y10S526/923 ,  C07C63/28

Abstract: WATER INSOLUBLE IMPURITIES ARE SEPARATED FROM AN AQUEOUS MIXTURE OF AN ALKALI METAL SALT OF AN AROMATIC CARBOXYLIC ACID CONTAINING SUCH IMPURITIES IN SUSPENSION BY CONTACTING THE AFORESAID MIXTURE WITH A CATIONIC ACRYLAMIDE COPOLYMER, E.G. A QUATERNARY SALT OF A VINYLPYRIDINE/ACRYLAMIDE COPOLYMER. FILTRATION AND SETTLING TIME RATES ARE SIGNIFICANTLY IMPROVED BY THE USE OF SAID CATIONIC ACRYLAMIDE COPOLYMERS.