Laminated structures and method
    1.
    发明授权
    Laminated structures and method 失效
    层压结构和方法

    公开(公告)号:US3673054A

    公开(公告)日:1972-06-27

    申请号:US3673054D

    申请日:1970-01-19

    Applicant: GEN ELECTRIC

    Abstract: Laminated structures are formed which are bonded by a novel fused tetrafluoroethylene polymer. The tetrafluoroethylene polymer is initially produced as a white powdery floc by irradiating tetrafluoroethylene monomer vapor at a temperature ranging from about 0* C to about 200* C and at a pressure of about 10 torr to 760 torr with light of wave length ranging from 1,800 to 2,400 Angstroms. The floc polymer is deposited on at least one surface of a lamina and a second lamina is placed over the deposited polymer to form a composite which is then heated to fuse the polymer and form the laminate.

    Abstract translation: 形成通过新的熔融四氟乙烯聚合物结合的层压结构。 四氟乙烯聚合物最初通过在约0℃至约200℃的温度和约10托至760托的压力下照射四氟乙烯单体蒸气而生产为白色粉末状絮凝物,其中波长为1800至 2,400埃。 将絮凝聚合物沉积在层片的至少一个表面上,并且将第二层板放置在沉积的聚合物上以形成复合材料,然后将其加热以熔融聚合物并形成层压体。

    Carbonyl-containing organosilicon materials
    2.
    发明授权
    Carbonyl-containing organosilicon materials 失效
    含羰基有机硅材料

    公开(公告)号:US3410822A

    公开(公告)日:1968-11-12

    申请号:US59111766

    申请日:1966-11-01

    Applicant: GEN ELECTRIC

    Abstract: The invention comprises carbonyl-containing silanes and siloxanes of formula (I) and copolymers and homopolymers derived therefrom. The homopolymers consist essentially of units of the formula (II) and the copolymers consist of 0.01 to 99.99 mole per cent of units of Formula (II) combined with 99.99 to 0.01 mole per cent of units of formula In the above formulae R is a monovalent halogenated or unhalogenated hydrocarbon radical or a cyanoalkyl radical, R1 is a divalent halogenated or unhalogenated hydrocarbon radical, A is hydrogen, an R radical, a halogen atom or an alkoxy radical, Z is an arylene radical, a divalent aryl ether radical of the type -Ar-O-Q-where Ar is an arylene radical and Q is a hydrocarbon radical, a divalent five-membered heterocyclic aromatic radical having a Group VIa element as the hetero atom, or a substituted derivative thereof, Y is or an alkylene radical, a is 0 or 1, b is 2 or 3, c is 0, 1 or 2 and d is 1, 2 or 3. The compounds of Formula (I) are prepared by acylating an aryl nucleus, including the above defined heterocycles, with a silyl acid halide of formula where X is a halogen atom. If these monoacylated compounds contain a methylene group alpha to the aryl nucleus, they may be converted to the diacylated compounds by oxidation of the methylene group. Alternatively the diacylated compound may be prepared by reducing the carbonyl group of a monoacylated compound to a methylene group with a metal hydride e.g. LiACH4 in the presence of aluminium diboride, acylating the product to produce a carbonyl group attached to the aryl nucleus and then oxidizing the methylene group back to a carbonyl group. Polymers and copolymers may be prepared by hydrolysing these compounds or cohydrolysing them with an organo halo silane. Examples describe the preparation of p(trimethysilylethyl) trimethylsilylbutyrylbenzene, a homopolymer of the formula a copolymer comprising about 5 mole per cent of units derived from this combined with about 95 mole per cent of dimethylsiloxy units, and a vulcanizing composition prepared by mixing the homopolymer of Example 2, ethyl polysilicate and dibutyl tin dilaurate.

Patent Agency Ranking