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Patent Agency Ranking
公开(公告)号：DE2550546A1
公开(公告)日：1977-05-18
申请号：DE2550546
申请日：1975-11-11
Applicant: BASF AG
Inventor： BRONSTERT KLAUS DIPL CHEM DR , LADENBERGER VOLKER DIPL CHEM D , DRUSCHKE WOLFGANG DIPL CHEM DR , GROH WOLFGANG DIPL CHEM DR , MUELLER HELMUT ING GRAD
IPC: C09J125/00 , C09J153/02 , C09J3/14
Abstract: Hot-melt pressure-sensitive adhesive composition based on a rubbery block copolymer of a monovinyl-aromatic compound or monovinylidene-aromatic compound and butadiene.
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公开(公告)号：DE2736952A1
公开(公告)日：1979-02-22
申请号：DE2736952
申请日：1977-08-17
Applicant: BASF AG
Inventor： BRONSTERT KLAUS DIPL CHEM DR , DRUSCHKE WOLFGANG DIPL CHEM DR , GROH WOLFGANG DIPL CHEM DR , LADENBERGER VOLKER DIPL CHEM D , MUELLER HELMUT ING GRAD
IPC: C09J7/02 , C09J153/02 , C09J3/14
Abstract: Compsns. consist of mixts. of (a) 100 pts. block copolymer of A-B type, (in which A is a mono-vinyl aromatic block and B a butadiene block), selectively hydrogenated to reduce the olefinic C=C bonds to 5%; B has a 1,2-vinyl content before hydrogenation of 20-70 wt.%; A constitutes 20-50 wt.% of the copolymer, which has Mn 20,000-200,000, (b) 25-300 pts. tackifying resin, and (c) 0-200 pts. rubber extender oil. Used as pressure sensitive adhesives on self-adhesive materials e.g. films, labels, floor and wall coverings, medical plasters and anti-drumming materials. Adhesive has high heat and oxidn. resistance, with lower melt viscosity and better adhesion properties than hydrogenated copolymers of A-B-A type. The bonds show better cohesion than those from unhydrogenated copolymers of A-B type.
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公开(公告)号：DE2510672A1
公开(公告)日：1976-09-23
申请号：DE2510672
申请日：1975-03-12
Applicant: BASF AG
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公开(公告)号：DE2452584A1
公开(公告)日：1976-05-13
申请号：DE2452584
申请日：1974-11-06
Applicant: BASF AG
Inventor： SCHMITT WERNER , MOHR HEINRICH DIPL CHEM DR , EISENTRAEGER KLAUS , MUELLER HELMUT ING GRAD , JAEGER HELMUT ING GRAD , IMMEL WOLFGANG DIPL ING DR
IPC: C09J7/02 , C09J123/22 , C09J3/14
Abstract: Hot melt adhesives contg. (A) 50-80 parts mixt. of 80-98 parts of polyisobutylene (I) with mol. wt. (Stavdinger) of 10000-20000 and 20-2 parts polyisobutylene (II) of mol.wt. 100000-180000. (B) 10-35 parts thermoplastic rubbery block copolymer of styrene and a 1,3-diene, with Mn 80000-250000, and (C) 10 to 35 parts tackifying resin with softening pt. 60-120 degrees C. Also equipment for continuous prodn. and processing of such adhesives. Adhesive is used for coating of labels, insulating foils for building, corrosion-protective bandages, etc. The adhesives have good dimensional stability, and no uncontrolled breakdown of the rubber additive occurs during processing. They show esp. high cohesion, are suitable for continuous prodn., and avoid the pollution, explosion and other hazards of solvents-based adhesives.
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公开(公告)号：DE2436873A1
公开(公告)日：1976-02-19
申请号：DE2436873
申请日：1974-07-31
Applicant: BASF AG
Inventor： HARTMANN HEINRICH DIPL CHEM DR , DRUSCHKE WOLFGANG DIPL CHEM DR , EISENTRAEGER KLAUS ING GRAD , MUELLER HELMUT ING GRAD
IPC: C08G18/00 , C08G18/80 , C08L7/00 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L67/00 , C08L75/00 , C08L101/00 , C09J175/00 , C09J175/04 , C09J3/16
Abstract: Pressure-sensitive adhesives are manufactured by reacting a mixture of A FROM 10 TO 90% BY WEIGHT OF A POLYOL HAVING A MOLECULAR WEIGHT OF FROM 300 TO 8,000 AND A HYDROXYL NUMBER OF FROM 20 TO 85 AND B FROM 5 TO 60% BY WEIGHT OF AN AMORPHOUS THERMOPLASTIC TACKIFIER RESIN HAVING A SOFTENING POINT OF FROM 40 DEG TO 140 DEG C and a molecular weight of from 200 to 7,500, with C FROM 5 TO 30% BY WEIGHT OF A POLYISOCYANATE MASKED WITH CH-acidic compounds, THE PERCENTAGES BY WEIGHT BEING BASED ON THE TOTAL WEIGHT OF COMPONENTS (A), (B) AND (C).
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