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    Siloxane resins
    2.
    发明授权
    Siloxane resins 失效
    硅氧烷树脂

    公开(公告)号：US06596404B1

    公开(公告)日：2003-07-22

    申请号：US10121971

    申请日：2002-04-15

    申请人： John Dean Albaugh ,  Ronald Paul Boisvert ,  Duane Raymond Bujalski ,  Pierre Maurice Chevalier ,  Russell Keith King ,  Duan Li Ou ,  Kai Su ,  Katsuya Eguchi

    发明人： John Dean Albaugh ,  Ronald Paul Boisvert ,  Duane Raymond Bujalski ,  Pierre Maurice Chevalier ,  Russell Keith King ,  Duan Li Ou ,  Kai Su ,  Katsuya Eguchi

    IPC分类号： B32B518

    CPC分类号： C09D183/04 ,  C08G77/12 ,  C08G77/16 ,  C08G77/18 ,  C08G77/24 ,  C08L83/04 ,  C09D4/00 ,  Y10T428/31663 ,  C08G77/04

    摘要： This invention pertains to a siloxane resin composition comprising R1SiO3/2 siloxane units, R2SiO3/2 siloxane units and (R3O)bSiO(4-b)/2 siloxane units wherein R1 is an alkyl group having 1 to 5 carbons, hydrogen, or mixtures thereof; R2 is a monovalent organic group having 6 to 30 carbons; R3 is a branched alkyl group having 3 to 30 carbons, b is from 1 to 3; and the siloxane resin contains from 2.5 to 85 mole percent R1SiO3/2 units, 2.5 to 50 mole percent R2SiO3/2 units and 5 to 95 mole percent (R3O)bSiO(4-b)/2 units. The siloxane resin is useful to make insoluble porous resin and insoluble porous coatings. Heating a substrate coated with the siloxane resin at a sufficient temperature effects removal of the R2 and R3O groups to form an insoluble insoluble porous coating having a porosity of 1 to 60 volume percent and a dielectric constant in the range of 1.5 to 3.0.

    摘要翻译： 本发明涉及包含R1SiO3 / 2硅氧烷单元，R2SiO3 / 2硅氧烷单元和（R3O）bSiO（4-b）/ 2硅氧烷单元的硅氧烷树脂组合物，其中R 1是具有1至5个碳的烷基，氢或其混合物 的; R2是碳原子数为6〜30的一价有机基团， R3为碳数为3〜30的支链烷基，b为1〜3， 硅氧烷树脂含有2.5〜85摩尔％的R 1 SiO 3/2单元，2.5〜50摩尔％的R 2 SiO 3/2单元和5〜95摩尔％（R3O）bSiO（4-b）/ 2单元。 硅氧烷树脂可用于制造不溶性多孔树脂和不溶性多孔涂层。 加热涂有硅氧烷树脂的基材在足够的温度下除去R2和R3O基团，形成孔隙率为1至60体积％和介电常数在1.5至3.0范围内的不溶性不溶性多孔涂层。