公开(公告)号：DE2341060A1

公开(公告)日：1975-02-27

申请号：DE2341060

申请日：1973-08-14

Applicant: BASF AG

Inventor： NICKOLAUS WILHELM ,  NEHRIG JUERGEN ,  HOFMANN ALFRED DIPL-CHEM ,  STANGE KARL DIPL-CHEM DR ,  KOENIG ULRICH DIPL-CHEM DR

IPC: B29C44/16 ,  B29C44/42 ,  B29C45/14 ,  B44C3/04 ,  B29D27/04

Abstract: In the parent patent, a heated flat thermoplastics foil is placed between 2 half-moulds defining a cavity and deformed by injecting an expansible thermoplastics, contng. a foaming agent, into the non-gas tight mould. The present patent provides a foil which is a laminate, in which the layer nearest the gate side of the tool comprises a thermoplastics which is compatible with the expansible material. Mouldings with superior surface characteristics are obtd. more economically than by prior-art spraying, painting or glueing.

公开(公告)号：DE2343870A1

公开(公告)日：1975-03-13

申请号：DE2343870

申请日：1973-08-31

Applicant: BASF AG

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

IPC: B32B27/00 ,  C09J125/10 ,  C09J153/02 ,  B32B25/14 ,  C08J5/12

Abstract: In a laminate with >=3 layers, A, B and C, in which layer A of a thermoplastic material is bonded to layer C, which does not adhere to this, with an adhesion promoting layer B, differing from layer A, layer B contains 10-90 (wt.)% opt. hydrogenated block copolymer of styrene and a diolefin, 90-10% statistical copolymer of styrene and a diolefin, 0-40% thermoplastic material(s), 0-20% inorg. filler and 0-30% polymeric lubricant. The laminate is used in various fields, e.g. as laminated packaging films, esp. for foodstuffs and pharmaceuticals, as structural elements in the refrigerator and furniture industries or for the prodn. of deep drawn parts, e.g. for menu trays for ready-prepd. dishes. The adhesion promoter is cheap and has good thermoplastic processability and excellent adhesive props.