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公开(公告)号：US3767627A
公开(公告)日：1973-10-23
申请号：US3767627D
申请日：1971-12-07
Applicant: STAMICARBON
Inventor： SCHOEN L
CPC classification number: C08G63/823
Abstract: AN IMPROVED PROCESS FOR THE PREPARATION OF POLYLACTONES HAVING BLOCKED END-GROUPS IS DISCLOSED WHEREIN A POLYLACTONE, A MIXTURE OF POLYLACTONES, OR A MIXTURE OF POLYLACTONE AND LACTONE MONOMER IS REACTED, IN THE PRESENCE OF A CATALYST, WITH AT LEAST ONE MODIFIER WHICH CONTAINS AT LEAST ONE ESTER GROUP NOT INCLUDED IN A LACTONE RING AND WHICH CARRIES NO REACTIVE HYDROGEN SUBSTITUENTS.
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公开(公告)号：US3806495A
公开(公告)日：1974-04-23
申请号：US27174172
申请日：1972-07-14
Applicant: STAMICARBON
Inventor： SCHOEN L
CPC classification number: C08G18/4269 , C08G63/823
Abstract: HYDROXYL-TERMINATED POLYLACTONES CAN BE PREPARED IN A TWO-STEP PROCESS, THE FIRST STEP OF WHICH INCLUDES POLYMERIZING MONOMERIC LACTONE IN THE PRESENCE OF A CATALYST WITH THE SECOND STEP COMPRISING REACTIG THE RESULTING POLYLACTONE WITH A MODIFIED CONTAINING HYDROXYL AND/OR AMINO GROUPS IN THE PRESENCE OF A CATALYST. THE SECOND STEP CAN BE CARRIED OUT ON INDEPENDENTLY PRODUCED POLYLACTONES.
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公开(公告)号：US3783134A
公开(公告)日：1974-01-01
申请号：US3783134D
申请日：1972-04-14
Applicant: STAMICARBON
Inventor： SCHOEN L
CPC classification number: B32B27/08 , B32B7/12 , B32B27/32 , B32B2307/54 , B32B2419/06 , C08L23/0815 , C08L23/0853 , C08L23/0869 , C08L67/04 , C08L95/00 , C08L2203/202 , C09D167/04 , C08L2666/02
Abstract: POLYLACTONE-MODIFIED BITUMEN-ETHYLENE BASED COPOLYMER COMPOSITION AND METHODS FOR THEIR PREPARATION ARE DISCLOSED. THE BITUMEN IS A DISTILLATE OF MINERAL OIL PRODUCTS, THE ETHYLENE COPOLYMER IS PREFERABLY DERIVED FROM ETHYLENE AND VINYL ACETATE AND THE POLYLACTONE HAS FROM 3 TO 8 CARBON ATOMS. THE COMPOSITIONS HAVE EXCELLENT BOND STRENGTH, IMPROVED HEAT STABILITY AND REDUCED TENDENCY TO SEPARATE INTO TWO OR MORE PHASES AND ARE USEFUL FOR FORMING MOLDED ARTICLES, WIRE COATINGS AND INSULATION AND AS ADHESIVES IN THE BUILDING INDUSTRY.
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