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1.发明授权
公开(公告)号：US3644571A
公开(公告)日：1972-02-22
申请号：US3644571D
申请日：1970-03-19
Applicant: GULF RESEARCH DEVELOPMENT CO
Inventor： ANDERSON RAYMOND P , GALIANO FRANCIS R
Abstract: WHEN OLEFIN-MALEIC ANHYDRIDE COPOLYMERS ARE EMPLOYED AT LOW LEVELS IN HYDROLYTIC POLYMERIZATION OF CAPROLACTAM TO YIELD GRAFTED CAPROLACTAM COPOLYMERS, THE RESULTING POLYMERS UPON HEATING IN THE SOLID STATE AT A TEMPERATURE OF AT LEAST 140*C. INCREASE IN MELT STRENGTH TO VALUES CONSIDERABLY ABOVE THE MELT STRENGTH OF CONVENTIONAL POLYCAPROLACTAM OF EQUIVALENT MELT INDEX. THE RESULTING PRODUCTS HAVING HIGH MELT STRENGTH MAY BE ADVANTAGEOUSLY USED FOR THE MANUFACTURE OF EXTRUDED AND BLOV XXX OLDED ARTICLES.
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2.发明授权Thermoplastic alloys of finely divided polylactams polymerized with alkaline catalyst and cocatalyst in a high molecular weight olefinic polymer matrix and method of preparation 失效在高分子量烯烃聚合物基质中与碱性催化剂和碳酸酯聚合的精细分散聚合物的热塑性合金及其制备方法
公开(公告)号：US3539662A
公开(公告)日：1970-11-10
申请号：US3539662D
申请日：1968-07-12
Applicant: GULF RESEARCH DEVELOPMENT CO
Inventor： HILL ROBERT W , ANDERSON RAYMOND P , SCROGGINS STANLEY V
CPC classification number: C08G69/18 , C08L77/02 , C08L23/06 , C08L23/0846 , C08L71/02
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