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公开(公告)号:DE2550762A1
公开(公告)日:1977-05-26
申请号:DE2550762
申请日:1975-11-12
Applicant: BASF AG
Abstract: In laminated synthetic bodies formed of is not 2 layers, esp. uneven layers, bonded by intermediate adhesive layers, each intermediate layer is 1-500 mu thick and is applied as a powder. The laminates may be decorative articles; they may be used in the furniture or recording industries. The adhesive layers may form sealing layers against water vapour and/or gases, may be electrically conducting or may be decorative. Thin intermediate adhesive layers can be applied to laminate layers of uneven structure. A discontinuous layer of adhesive may be applied.
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公开(公告)号:DE3101196A1
公开(公告)日:1982-09-02
申请号:DE3101196
申请日:1981-01-16
Applicant: BASF AG
Inventor: NAETSCH HANS DIPL ING , NEHRIG JUERGEN ING GRAD
Abstract: In a non-return valve on the screw head of a thermoplastic-processing screw injection moulding machine, a non-return element (8) is guided freely displaceably in an axial bore (6). On the inner wall of the axial bore (6) and/or on the shaft (10) of the non-return element (8) longitudinal grooves (14) are located, via which plasticated plastic can flow out of the gap between the sealing surfaces (12 and 13). In this manner, the precision of injection moulding machines is increased by an improved closing behaviour of the non-return valve and simultaneously the closing action of the non-return element is made faster.
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公开(公告)号:DE2448477A1
公开(公告)日:1976-04-22
申请号:DE2448477
申请日:1974-10-11
Applicant: BASF AG
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