公开(公告)号：US3801428A

公开(公告)日：1974-04-02

申请号：US3801428D

申请日：1971-09-24

Applicant: BAYER AG

Inventor： STRIEGLER H ,  RESZ R ,  BARTL H

IPC: D04H1/4266 ,  D04H1/54 ,  D04H1/546 ,  D04H1/55 ,  B32B27/00

CPC classification number: D04H1/546 ,  D04H1/4266 ,  D04H1/54 ,  D04H1/55 ,  Y10T428/2904 ,  Y10T442/69

Abstract: A high bulk bonded non-woven fibre fleece containing natural and/or synthetic fibres and binder fibres, which are adhesive at higher temperatures, said binder fibres consisting of a saponified ethylene-vinyl acetate copolymer, the molar ratio of vinyl acetate to ethylene in said copolymer before saponification being in the range of 1:1 to 1:20. In the process to produce the bonded fleece, the fibres containing 5 to 50 percent by weight of binder fibres are formed to a non-woven fleece and the formed fleece is heated to temperatures of above 110* C, to render adhesive the binder fibres.

公开(公告)号：US3855353A

公开(公告)日：1974-12-17

申请号：US34454473

申请日：1973-03-26

Applicant: BAYER AG

Inventor： KUHN R ,  ALBERTS H ,  BARTL H

IPC: C08F255/00 ,  C08F255/02 ,  C08F263/02 ,  C08F15/00

CPC classification number: C08F263/02 ,  C08F255/026 ,  C08F255/02 ,  C08F220/42 ,  C08F212/08 ,  C08F210/00

Abstract: Graft polymers are obtained by graft polymerization of 10 to 95% by weight of a monomer mixture consisting of 15 to 80% by weight of (meth)acrylonitrile, 10 to 70% by weight of at least one aromatic vinyl compound, 5 to 40% by weight of at least one monoolefine and optionally further monomers on 5 to 90% by weight of an ethylene-vinyl ester copolymer having a vinyl ester content of 5 to 75% by weight in the presence of a polymerization catalyst in homogeneous or heterogeneous phase at temperatures of from -20*C and under pressure of up to 500 atm.

Abstract translation: 通过接枝聚合10至95重量％的由15至80重量％的（甲基）丙烯腈，10至70重量％的至少一种芳族乙烯基化合物，5至40重量％的（甲基）丙烯腈， 的至少一种单烯烃和任选的另外的单体，其在均相或非均相中的聚合催化剂存在下，在5-90重量％的乙烯酯含量为5-75重量％的乙烯 - 乙烯基酯共聚物 温度为-20℃，压力可达500atm。

公开(公告)号：US3848025A

公开(公告)日：1974-11-12

申请号：US29605072

申请日：1972-10-10

Applicant: BAYER AG

Inventor： ALBERTS H ,  BARTL H

IPC: C08F255/00 ,  C08F255/02 ,  C08F263/02 ,  C08F15/00

CPC classification number: C08F263/02 ,  C08F255/02

Abstract: 1. A PROCESS FOR THE PRODUCTION OF A GRAFT POLYMER WHICH COMPRISES POLYMERIZING, IN THE PRESENCE OF A RADICAL FORMER IN HOMOGENOUS OR HETEROGENOUS PHASE, A MONOMER MIXTURE OF (A) ACRYLONITRILE, METHACRYLONITRILE OR A MIXTURE THEREOF, (B) AT LEAST ONE MONO-OLEFIN HAVING FROM 2 TO 18 CARBON ATOMS, AND (C) 0 TO 50% BY WEIGHT, BASED ON THE TOTAL MONOMERS, OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID AND METHACRYLIC ACID ESTERS HAVING FROM 1 TO 18 CARBON ATOMS IN THE ALCOHOL MOIETY, METHACRYLAMIDE, ACRYLIC ACID AND METHACRYLIC ACID, IN THE PRESENCE OF A HOMOPOLYMER OF ETHYLENE OR A COPOLYMER OF ETHYLENE WITH (I) AN ORGANIC VINYL ESTER ORWITH (II) AN A,B-MONO-OLEFINICALLY UNSATURATED CARBOXYLIC ACID OR A DERIVATIVE THEREOF, SAID ACIDS HAVING 2 TO 4 NON-CARBOXYL CARBON ATOMS.

公开(公告)号：US3753958A

公开(公告)日：1973-08-21

申请号：US3753958D

申请日：1971-12-13

Applicant: BAYER AG

Inventor： APPEL H ,  BARTL H ,  WINGLER F ,  PEDAIN J

IPC: C08F2/00 ,  C08F2/02 ,  C08F4/00 ,  C08F4/28 ,  C08F20/52 ,  C08F212/00 ,  C08F220/00 ,  C08F220/04 ,  C08F220/12 ,  C08F220/42 ,  C08G18/62 ,  C08G18/80 ,  C08F1/04 ,  C08F15/40

CPC classification number: C08F220/12 ,  C08G18/6225 ,  C08G18/6266 ,  C08G18/80 ,  C08G2150/20 ,  Y10S524/904

Abstract: COPOLYMER OF FROM 10 TO 70 BY WEIGHT OF AT LEAST ONE ESTER OF ACRYLIC AND/OR METHACRYLIC ACID, 25 TO 75% BY WEIGHT OF AN OPTIONALLY SUBSTITUTED STYRENE, VINYL ESTER OR (METH) ACRLONITRILE, 5 TO 50% BY WEIGHT OF AT LEAST ONE MONOMER FROM THE GROUP OF A,B-MONO-OLEFINICALLY UNSATURATED CARBOXYLIC ACID WITH 3 TO 5 CARBON ATOMS, HYDROXYALKYL ESTERS OF THE FOREGOING ACIDS AND AMIDES AND AMIDES DERIVATIVES OF ACRYLIC AND METHACRYLIC ACID WHICH IS PULVERSIBLE, HAS A SOFTENING RANGE OF FROM 75 TO 110*C. AND AN AVERAGE MOLECULAR WEIGHT OF FRROM ABOUT 500 TO 10,00 AND PROCESS OF PRODUCING THE SAME BY MIXING SAIE COMPONENTS, BULK POLYMERIZING IN A FIRST STAGE TO A CONVERSION OFF 70 TO 90% WITH AN INITIATOR DECOMPOSING INTO RADICALS BELOW 70*C. AND FINISHING BULK POLYMERIZATION IN A SECOND STAGE TO ACONVERSION OF AT LEAST 95% WITH AN INITIATOR DECOMPOSING AT FROM 120 TO 170*C.

公开(公告)号：US3745192A

公开(公告)日：1973-07-10

申请号：US3745192D

申请日：1970-03-11

Applicant: BAYER AG

Inventor： WINGLER F ,  BARTL H

IPC: C08F2/00 ,  C08F2/38 ,  C08F10/00 ,  C08F14/00 ,  C08F14/02 ,  C08F210/00 ,  C08F214/00 ,  C07C41/06 ,  C07C43/00 ,  C07C43/14

CPC classification number: C08F214/00 ,  C08F10/00 ,  C08F4/28

Abstract: COPOLYMERS WITH A MOLECULAR WEIGHT OF FROM 300 TO 3,000, A CHLORINE CONTENT AND/OR BROMINE CONTENT OF FROM 40 TO 80% BY WEIGHT AND AN OH NUMBER OF FROM 20 TO 200 AND PROCESS OF PRODUCING THE SAME.