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    Self-extinguishing polyoxymethylene molding compositions reinforced with glass fibers
    1.
    发明授权
    Self-extinguishing polyoxymethylene molding compositions reinforced with glass fibers 失效
    用玻璃纤维增​​强的自熄性聚甲醛成型组合物

    公开(公告)号：US3884867A

    公开(公告)日：1975-05-20

    申请号：US27858572

    申请日：1972-08-07

    Applicant: BASF AG

    Inventor： HILT ALBRECHT ,  SANDER BRUNO ,  HILD WILLIA ,  FUCHS HUGO ,  SCHMIDT FRANZ

    IPC: C08L59/00 ,  C08K3/02 ,  C08K7/14 ,  C08G51/10

    CPC classification number: C08K3/02 ,  C08K7/14 ,  C08L59/02

    Abstract: Self-extinguishing molding compositions based on polyoxymethylenes containing from 5 to 15%, preferably 7 to 10%, by weight (based on the total weight of the molding composition) of finely divided red phosphorus and from 1 to 40%, preferably 15 to 35%, by weight (based on the total weight of the molding composition) of glass fibers, and a method of preparing such molding compositions.

    Abstract translation: 基于聚氧亚甲基的自熄模塑组合物，其含有5至15重量％，优选7至10重量％（基于模塑组合物的总重量）细碎红磷和1至40重量％，优选15至35重量％ 重量百分比（基于模塑组合物的总重量）的玻璃纤维，以及制备这种模塑组合物的方法。

    Polymers and copolymers of trioxane
    5.
    发明专利
    Polymers and copolymers of trioxane 未知

    公开(公告)号：GB1106214A

    公开(公告)日：1968-03-13

    申请号：GB2913365

    申请日：1965-07-09

    Applicant: BASF AG

    Inventor： SPERBER HEINRICH ,  HEEL HELMUT ,  SCHMIDT FRANZ ,  AMMON HANS VON ,  SCHMITT ERWIN ,  MICHEL HEINZ

    IPC: B29C33/62 ,  B29C39/00 ,  B29C39/06 ,  B29C39/26 ,  B29C39/36 ,  B29C39/38 ,  C08G2/00

    Abstract: Polymers and copolymers of trioxane are produced in substance by means of cationic catalysts at 60 DEG to 120 DEG C. by introducing the reaction components on to a flat chamber mould, having a small open surface, capable of being cooled externally and provided with a lining of an apolar plastics within a period which is shorter than the induction time of the polymerization, cooling the mould during the polymerization, and keeping the temperature of the mould above the melting point of the reaction components while the mould is being emptied. Cyclic ethers, cyclic acetals, cyclic ketals, cyclic esters, and polyacetals are specified comonomers, boron triflouride and its co-ordination complexes being preferred catalysts. Polyethylene, polypropylene and polytetrafluoroethylene are specified apolar plastics. Apparatus for carrying out the process is described.

    Processing polyacetals
    7.
    发明专利
    Processing polyacetals 未知

    公开(公告)号：GB1070876A

    公开(公告)日：1967-06-07

    申请号：GB3757364

    申请日：1964-09-15

    Applicant: BASF AG

    Inventor： SCHWARTZ ERICH ,  RICKER ERNST ,  SCHMIDT FRANZ

    IPC: C08G2/00 ,  C08G2/28 ,  C08K3/16

    Abstract: Polyacetals obtained by polymerizing a monomer mixture consisting essentially of trioxane in the presence of a catalyst selected from the group consisting of boron trifluoride and a boron trifluoride co-ordination complex core worked up by adding from 0.01 to 5% of a halide selected from the group consisting of lithium chloride and fluoride, sodium chloride and fluoride, potassium chloride and fluoride, cadmium fluoride, strontium fluoride and barium fluoride, melting and homogenizing the resulting composition. Comonomers which may be present are cyclic ethers, acetals, lactones white polymeric ethers and acetals may also be present.

    Method and apparatus for homogenising very highly viscous melts
    10.
    发明专利
    Method and apparatus for homogenising very highly viscous melts 未知

    公开(公告)号：GB885358A

    公开(公告)日：1961-12-28

    申请号：GB1607660

    申请日：1960-05-06

    Applicant: BASF AG

    Inventor： SCHWARTZ ERICH ,  SCHMIDT FRANZ ,  SINN RICHARD

    IPC: B01F5/06

    Abstract: In a process and apparatus for homogenizing a highly viscous molten polymer (see also Group II), especially polyethylene, the material having a viscosity of at least 50,000 poises is forced through a narrow tortuous passageway of width 0,5 to 3 mm. In an example a linear low-pressure polyethylene is pumped through an arrangement according to Fig. 1 having 12 parallel channels of width 1,2 mm. at 175 DEG C. and at a rate of 20 g per min. There are 30 spinneret openings 5 having a diameter of 0,3 mm. and the threads may be drawn at a speed of 200 mm. per min. In another example an apparatus according to Fig. 2 is installed between the screw cylinder outlet and the blowing head of a film-blowing machine. The width of the concentric annular passages is 1,5 mm. The melt is supplied at 60 g per minute and 140 DEG C. and a film about 60 microns in thickness is drawn off at a rate of 2 m. per min.

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