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公开(公告)号:GB1282056A
公开(公告)日:1972-07-19
申请号:GB5879069
申请日:1969-12-02
Applicant: HOECHST AG
Abstract: 1282056 Thermoplastic dressing FARBWERKE HOECHST AG 2 Dec 1969 [2 Dec 1968] 58790/69 Heading B2E [Also in Divisions A5 and B5] A thermoplastic dressing comprises (a) a textile fabric coated on at least one side and/or impregnated with at least one copolymer of trioxane with one or more cyclic formals of the general formula: where the sum of the integers x, y is 0 or 1, the molar ratio of formal:trioxan being 0.7- 2.8:1 and the melting point range of the copolymer being from 40‹-80‹C and (b) at least one separating film or sheet of paper coated with a silicone resin on one or both sides. The copolymer may be applied to the textile by extrusion to a thickness of 1-5 mm or by impregnating individual fibres before making the textile. Suitable copolymers have a reduced specific viscosity of 0.3-1.5 Al/g (measured at 140‹C in butyro lactone at 0.5g/100 ml). The textile may comprise 1-5% weight of the coated fabric and may weigh 10-100 g/m 2 . Synthetic or natural fibres e.g. cotton, wool, cellulose acetate, polyesters, polyacrylonitrile may be used in the textiles. The release paper may suitably comprise a coating of poly (dimethylsiloxane) in an amount 1-20% wt. of paper. The dressing is applied in a heat softened state and then allowed to solidify.
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公开(公告)号:ZA7005403B
公开(公告)日:1971-05-27
申请号:ZA7005403
申请日:1970-08-05
Applicant: HOECHST AG
Inventor: BURG K , WOLTERS E , CHERDRON H , LEUGERING H
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公开(公告)号:ZA801498B
公开(公告)日:1981-04-29
申请号:ZA801498
申请日:1980-03-14
Applicant: HOECHST AG
Inventor: HERWIG W , BURG K , SPANKEREN U , LUEDERS W
IPC: C08J3/20 , C08L23/00 , C08K3/26 , C08K5/42 , C08K5/45 , C08K9/04 , C08L7/00 , C08L21/00 , C08L101/00 , C08L
Abstract: In filler-containing molding compositions a very good compatibility between the hydrophilic filler and the hydrophobic polymer matrix is obtained by using as adhesion promotor alkali metal salts of alkyl or alkylene-sulfonic acids or alkyl sulfates, the derivatives thereof and the acids on which the salts are based. The flow properties of the molding compositions and the mechanical properties of the shaped articles made therefrom are improved.
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公开(公告)号:ZA784405B
公开(公告)日:1979-08-29
申请号:ZA784405
申请日:1978-08-03
Applicant: HOECHST AG
Inventor: LUEDERS W , VAN SPANKEREN U , SPANKEREN U VAN , BURG K , HERWIG W
IPC: C08L23/00 , C08K3/26 , C08K5/09 , C08K5/52 , C08K5/53 , C08K5/5333 , C08K9/04 , C08L7/00 , C08L21/00 , C08L23/02 , C08L23/06 , C08L101/00 , C08K , C08L
Abstract: In the case of polyolefins filled with alkaline earth metal carbonates, a very good compatibility of the hydrophilic filler and the hydrophobic polymer matrix is reached when using as adhesion promoters certain organo-phosphorus compounds. As a result, improved mechanical properties are obtained with the articles made of plastic material that has been prepared from such polyolefin molding compositions.
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公开(公告)号:BR7702897A
公开(公告)日:1977-11-29
申请号:BR7702897
申请日:1977-05-05
Applicant: HOECHST AG
Abstract: of the disclosure: Granular oxymethlene polymers are prepared by cooling a solution or dispersion of an oxymethylene polymer, the temperature of the said solution of dispersion polymer, to a temperature just below the said sintering temperature. As dissolving or dispersing agent there is used a mixture of methanol and water. The cooling of the said solution of dispersion is effected in two stages while using a liquid cooling agent or a cooling device. After precipitation the coarse-granular polymer is separated from the fine-granular portion. It is suitable as engineering plastic for preparing molded articles.
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59.
公开(公告)号:IN138971B
公开(公告)日:1976-04-17
申请号:IN303CA1973
申请日:1973-02-12
Applicant: HOECHST AG
Abstract: A thermoplastic molding composition is composed of a linear poly(oxymethylene) and a graft copolymer the side chains of which consist essentially of oxymethylene groups. The said graft copolymer acts as a nucleating agent; its effectiveness is dependent on its amount, molecular weight and degree of grafting. Molded articles made of said composition show improved mechanical properties.
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公开(公告)号:ZA747946B
公开(公告)日:1976-01-28
申请号:ZA747946
申请日:1974-12-13
Applicant: HOECHST AG
Inventor: SECTRO G , BURG K , DUERICHEN K
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