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公开(公告)号：US3872182A
公开(公告)日：1975-03-18
申请号：US33281073
申请日：1973-02-16
Applicant: HOECHST AG
Inventor： SEXTRO GUNTER , BURG KARLHEINZ , KERN RUDOLF , SCHMIDT HEINZ , WOLTERS ERNST
CPC classification number: C08L59/02 , C08L59/00 , C08L2666/24
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.
Abstract translation: 热塑性模塑组合物由线性聚（甲醛）和其侧链主要由氧亚甲基组成的接枝共聚物组成。 所述接枝共聚物用作成核剂; 其有效性取决于其量，分子量和接枝度。 由所述组合物制成的模制品显示改进的机械性能。
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公开(公告)号：US3925505A
公开(公告)日：1975-12-09
申请号：US46689974
申请日：1974-05-03
Applicant: HOECHST AG
Inventor： SEXTRO GUNTER , BURG KARLHEINZ
Abstract: A modified thermoplastic molding composition based on polyacetal prepared by polymerizing trioxane in the presence of a polyether by means of a catalyst; the polyether is a copolymer of at least 2 different cyclic ethers. The polymerization may also take place in the presence of additional monomers, suitable for the copolymerization with trioxane. The molding composition is suitable for the manufacture of different kinds of shaped articles, especially machine parts.
Abstract translation: 一种基于聚缩醛的改性热塑性模塑组合物，其通过在聚醚存在下通过催化剂聚合三恶烷而制备; 聚醚是至少2种不同的环醚的共聚物。 聚合还可以在适用于与三恶烷共聚的其它单体的存在下进行。 该模塑组合物适用于制造不同种类的成型制品，特别是机器部件。
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公开(公告)号：CA1076291A
公开(公告)日：1980-04-22
申请号：CA277735
申请日：1977-05-05
Applicant: HOECHST AG
Inventor： SEXTRO GUNTER , BURG KARLHEINZ , SCHLAF HELMUT , SABEL HANS-DIETER , HELLER ALWIN
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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公开(公告)号：CA1055192A
公开(公告)日：1979-05-22
申请号：CA246680
申请日：1976-02-27
Applicant: HOECHST AG
Inventor： SEXTRO GUNTER , BURG KARLHEINZ , SCHLAF HELMUT , LEUGERING HANS J , HELLER ALWIN
Abstract: PROCESS FOR PREPARING OXYMETHYLENE POLYMERS IN A GRANULAR FORM of the disclosure: Oxymethylene polymers are obtained in a granular form by cooling a solution or dispersion of an oxymethylene polymer, the temperature of which solution or dispersion is above the sintering temperature of the oxymethylene polymer, to a temperature just below the sintering temperature of the oxymethylene polymer. As dissolving or dispersing agent as well as precipitating and cooling agent there is used a mixture of methanol and water having a methanol content of at least 75% by weight. The oxymethylene polymer obtained is suitable as engineering plastic for preparing moulded articles.
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公开(公告)号：AU7645174A
公开(公告)日：1976-06-17
申请号：AU7645174
申请日：1974-12-16
Applicant: HOECHST AG
Inventor： SEXTRO GUNTER , HAFNER KARL-HEINZ , BURG KARLHEINZ
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Patent Agency Ranking
公开(公告)号：CA999693A
公开(公告)日：1976-11-09
申请号：CA164170
申请日：1973-02-16
Applicant: HOECHST AG
Inventor： SEXTRO GUNTER , BURG KARLHEINZ , KERN RUDOLF , SCHMIDT HEINZ , WOLTERS ERNST
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：AU7839975A
公开(公告)日：1976-08-26
申请号：AU7839975
申请日：1975-02-20
Applicant: HOECHST AG
Inventor： SEXTRO GUNTER , BURG KARLHEINZ , WOLTERS ERNST
Abstract: Oxymethylene copolymer having heat and hydrolysis resistant terminal groups is prepared by heating the polymers present in a liquid phase, whereby a thermal degradation of the unstable terminal groups takes place. The degradation is advantageously effected in the presence of a calcium or magnesium salt of an aliphatic carboxylic acid of low molecular weight. The oxymethylene copolymers are suitable as engineering plastic for preparing semi-finished products and finished products.
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公开(公告)号：AU6428174A
公开(公告)日：1975-07-10
申请号：AU6428174
申请日：1974-01-08
Applicant: HOECHST AG
Inventor： BURG KARLHEINZ , SEXTRO GUNTER , WOLTERS ERNST , SCHMIDT HEINZ
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公开(公告)号：CA1038536A
公开(公告)日：1978-09-12
申请号：CA210490
申请日：1974-10-01
Applicant: HOECHST AG
Inventor： GROSSMANN HANS-HERMANN , BURG KARLHEINZ , SEXTRO GUNTER
IPC: C08L59/00 , C08K5/34 , C08K5/3492 , C08L61/02
Abstract: MOULDING COMPOSITION BASED ON POLY(OXYMETHYLENE) of the disclosure: A moulding composition based on poly(oxymethylene) containing a substituted ureido-s-triazine as nucleating and stabilizing agent is an excellent engineering plastic useful for preparing shaped articles having stable dimensions and an exact size.
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公开(公告)号：CA1006643A
公开(公告)日：1977-03-08
申请号：CA188820
申请日：1973-12-21
Applicant: HOECHST AG
Inventor： SEXTRO GUNTER , BURG KARLHEINZ , GUTWEILER KLEMENS
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