公开(公告)号：DE3817279A1

公开(公告)日：1989-11-30

申请号：DE3817279

申请日：1988-05-20

Applicant: BASF AG

Inventor： PIPPER GUNTER ,  MATTHIES HANS GEORG DR ,  MCKEE GRAHAM EDMUND DR ,  THEYSON RAINER DR

IPC: C08G69/28 ,  C08L21/00 ,  C08L33/04 ,  C08L51/00 ,  C08L77/00 ,  C08L77/06

公开(公告)号：DE3742833A1

公开(公告)日：1989-07-13

申请号：DE3742833

申请日：1987-12-17

Applicant: BASF AG

Inventor： WINKLER MATTHIAS DR ,  ITTEMANN PETER DR ,  MATTHIES HANS GEORG DR

IPC: C08J5/04 ,  B29B15/12

Abstract: The invention relates to a method for making a fibre-reinforced composite by impregnating a woven fabric in which parallel reinforcing fibres are held together by thermoplastic threads in an impregnating bath which contains from 0 to 50% by weight of a thermoplastic and from 100 to 0% by weight of a solvent for the thermoplastic, evaporating the solvent, and fabricating. The composite can be used to make finished components for the automotive industry and for aerospace technology.

公开(公告)号：DE1264060B

公开(公告)日：1968-03-21

申请号：DEB0069477

申请日：1962-11-03

Applicant: BASF AG

Inventor： MATTHIES HANS GEORG DR ,  MAAHS PAUL DR ,  WENGER FRIEDRICH DR ,  LIESEBERG FRIEDRICH DR

IPC: C08J3/20 ,  C08K3/22 ,  C08K3/32 ,  C08K3/36 ,  C08L67/02 ,  C08G39/02

Abstract: A process for the production of linear polyesters pigmented with TiO2 comprises transesterifying an alkyl ester of a dicarboxylic acid with a glycol in the presence of a stabilized suspension of TiO2, and polycondensing the glycol ester, wherein the suspension stabilizer is an alumina sol of pH 4-6, a silicic acid sol of pH 7-9 or a polyphosphate sol of pH 6-8 -the pH being measured in 25% by weight solutions. The stabilizer sols are usually equal to 5-30% by weight of the TiO2, which itself is usually 0.3-2% by weight of the finished polyester. The suspension stabilizers may be pre-suspended in a glycol, e.g. ethylene, propylene or butylene glycols or cyclohexane dicarbinol, then added to a TiO2 suspension, or both may be suspended together. Suitable starting materials for the polyester preparation are methyl, ethyl or butyl esters of isophthalic, adipic, vanillic, or, preferably terephthalic acid, and ethylene, propylene, or butylene glycols. In examples TiO2 is added to make a 6% suspension in ethylene glycol containing 1% of an alumina sol of pH 4, or 1, 1.5 or 2% of a silicic acid sol of pH 8, or 1, 1.5 or 2% of a polyphosphate sol of pH 7, and the stability of these suspensions is shown. A polyester is prepared from dimethyl terephthalate, ethylene glycol, a 1% alumina or silicic acid sol, zinc borate and antimony trioxide.