公开(公告)号：US3794634A

公开(公告)日：1974-02-26

申请号：US3794634D

申请日：1972-03-16

申请人： DU PONT

发明人： KEOWN R ,  NYCE J

IPC分类号： C08L7/00 ,  C08L21/00 ,  C08L21/02 ,  C08L51/00 ,  C08L51/02 ,  C08L51/04 ,  C09J151/00 ,  C08F45/28 ,  C08F45/34

CPC分类号： C08L51/04 ,  C08L33/04 ,  C08L2666/04

摘要： THE INVENTION PROVIDES A BLEND OF CHLORINATED BUTADIENE POLYMERS WHICH IS READILY PEPTIZABLE IN ALIPHATIC LIQUIDS TO FORM SPARYABLE DISPERSIONS USEFUL AS ADHESIVES. THE BLEND COMPRISES (A) A GRAFT COPOLYMER OF (1) A CHLORINATED BUTADIENE SELECTED FROM CHLOROPRENE AND 2,3DICHLOROBUTADIENE-1,3, (2) AN ALKYL ACRYLATE OR METHACRYLATE, AS THE GRAFT PORTION, AND (3) UP TO 2% BY WEIGHT OF SULFUR AND (B) A COPOLYMER OF SULFUR AND A CHLORINATED BUTADIENE SELECTED FROM CHLOROPRENE AND 2,3DICHLOROBUTADIENE-1,3. THE PROPORTION BY WEIGHT OF ALKYL ACRYLATE OR METHACRYLATE IS 40 TO 80% IN (A) AND 15 TO 60% IN THE TOTAL COMPOSITION; AND THE PROPORTION OF SULFUR IN (B) IS 0.2 TO 2%. THE NUMBER AVERAGE MOLECULAR WEIGHT BETWEE SULFUR ATOMS IN (B) IS NOT OVER 110,000, AND THE ALKYL GROUP OF THE ALKYL ACRYLATE OR METHACRYLATE IN (A) CONTAINS 1 TO 18 CARBON ATOMS. A PREFERRED METHOD FOR MAKING THE SPRAYABLE DISPERISONS FROM THE BLENDS COMPRISES MIXING THE BLEND WITH AN ORGANIC LIQUID WHICH IS A NON-SOLVENT FOR COMPONENT (B) BUT IS A SOLVENT FOR THE ALKYL ACRYLATE OR METHACRYLATE GRAFT OF COMPONENT (A), MIXING WITH THE RESULTING PRODUCT A THIOPHILIC PEPTIZING AGENT, AND STIRRING UNTIL THE DESIRED DISPERSION IS OBTAINED.

公开(公告)号：US3733294A

公开(公告)日：1973-05-15

申请号：US3733294D

申请日：1970-11-25

申请人： DU PONT

发明人： KEOWN R

IPC分类号： C08J3/02 ,  C08F45/28 ,  C08F47/20

CPC分类号： C08J3/02 ,  Y10S524/923 ,  Y10S524/924

摘要： SOLUTIONS AND DISPERSIONS OF POLYMERS IN ORGANIC LIQUIDS CAN BE MANUFACTURED BY (A) PROVIDING A POLYMER LATEX CONTAINING AN ANIONIC OR CATIONIC EMULSIFIER, (B) PROVIDING A SOLUTION IN A WATER-/MMISCIBLE ORGANIC LIQUID OF S TRANSFER AGENT WHICH IS ABLE TO UNDERGO AN ION-EXCHANGE REACTION WITH SAID EMULSIFIER AS DEFINED IN C BELOW, (C) BRINGING THE LATEX OF A AND THE SOLUTION OF B INTO CONTACT WITH EACH OTHER SO THAT AN ION-EXCHANGE REACTION OCCURS BETWEEN THE TRANSFER AGENT AND THE EMULSIFIER TO FORM A REACTION PRODUCT WHOSE SOLUBILITY IS SUCH THAT IN A MIXTURE OF EQUAL PARTS BY WEIGHT OF SAID ORGANIC LIQUID AND WATER, ABOUT 90-100% BY WEIGHT OF THE REACTION PRODUCT IS DISSOLVED IN THE ORGANIC LIQUID AND ABOUT 010% BY WEIGHT IS DISSOLVED IN THE WATER, AND (D) REMOVING THE WATER FROM THE COMPOSITION. WHEN THE ORGANIC LIQUID USED IN (B) IS A SOLVENT FOR THE POLYMER AT ORDINARY TEMPERATURES, A POLYMER SOLUTION IS ONTAINED BY THE PROCESS.