公开(公告)号：DE2545726A1

公开(公告)日：1977-04-21

申请号：DE2545726

申请日：1975-10-11

Applicant: BASF AG

Inventor： STANGE KARL DIPL CHEM DR ,  JENNE HELMUT DIPL CHEM DR ,  KROEBL KARL DIPL ING DR ,  KOENIG ULRICH DIPL CHEM DR

IPC: B32B5/28 ,  C08J5/12 ,  B32B27/12

Abstract: Laminates comprise >=3 layers A, B and C, such that A and C consist of similar or different thermoplastics, and the middle layer B consists of a fibre-reinforced thermoplastic and the layers are strongly bonded together. The layer B consists of a block copolymer of formula (X-Y)n or X-(Y-X)n where X=polystyrene, Y=a diene polymer and n=1, 2 or 3, in which the fibrous reinforcement is embedded. Used for screens, wall elements, decorative panels, etc. and mouldings. Laminates of thermoplastics with glass mat interlayers are known but adhesion is poor unless the glass is specially treated. Rigid materials such as impact resistant polystyrene lose their toughness and soft prods. Such as polyethylene are not sufficiently rigid. These disadvantages are avoided if the glass fibres are embedded in a rubbery, elastic but easy flowing and mouldable thermoplast. Such prods. adhere well to both glass fibres (without pretreatment) and impact resistant polystyrene. A laminate with outer layers of polystyrene and polyethylene comprised alternate inner layers of glass mat and a styrene-butadiene block copolymer contg. 40 wt. % styrene.

公开(公告)号：DE2547626A1

公开(公告)日：1977-04-28

申请号：DE2547626

申请日：1975-10-24

Applicant: BASF AG

Inventor： JENNE HELMUT DIPL CHEM DR ,  STANGE KARL DIPL CHEM DR ,  KOENIG ULRICH DIPL CHEM DR

IPC: B32B27/30 ,  C09D5/25 ,  B32B27/28 ,  B32B27/06 ,  C09D3/74

Abstract: Substrates coated with polyvinyl carbazole (I) which is made to adhere strongly to the substrate with an adhesion facilitating layer. This consists of a styrene-maleic acid anhydride (II) copolymer contg. about 5-30 wt. % maleic acid anhydride w.r.t. the polymer. Excellent adhesion of (I) to a variety of substrates is achieved by use of the (II) copolymer as an adhesion facilitating layer. In coated substrates the semi-conducting properties of (I) are combined with the substrate properties e.g. withe the toughness of shock resistant styrene, the flexibility of polyolefines, the strength of metals. The coated substrates can be used for the prpn. of e.g. flexible copying bands and for copying cylinders for light sensitive paper.

公开(公告)号：DE2547625A1

公开(公告)日：1977-04-28

申请号：DE2547625

申请日：1975-10-24

Applicant: BASF AG

Inventor： KOENIG ULRICH DIPL CHEM DR ,  JENNE HELMUT DIPL CHEM DR ,  STANGE KARL DIPL CHEM DR

IPC: B32B27/30 ,  B32B27/28

Abstract: Substrates coated with polyvinylcarbazole (I) which is made to adhere strongly to a substrate with an adhesion facilitating layer. This consists of a block copolymer of formula (X-Y)n or X-(Y-X)n (where X is a polystyrene block, Y a diene polymer block, and n = 1 to 3). The block copolymer contains 20-60 wt. % of styrene. Excellent adhesion of (I) to a variety of substrates is achieved by use of a styrene butadiene block copolymer as an adhesion facilitating layer. In coated substrates the semi-conducting properties of (I) are combined with the substrate properties e.g. with the toughness of shock resistant styrene, the flexibility of polyolefines, the strength of metals, the coated substrates can be used for the prepn. of e.g. flexible copying bands and for copying cylinders for light sensitive paper.