发明授权
- 专利标题: Process for producing thermosetting finishing powders
- 专利标题(中): 热固性精整粉末的制备方法
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申请号: US426954申请日: 1973-12-13
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公开(公告)号: US4042645A公开(公告)日: 1977-08-16
- 发明人: Kuniomi Hirota , Akio Masumoto , Hiroshi Ozawa , Nobuki Kobayashi , Teruo Honda
- 申请人: Kuniomi Hirota , Akio Masumoto , Hiroshi Ozawa , Nobuki Kobayashi , Teruo Honda
- 申请人地址: JA Tokyo
- 专利权人: Mitsui Toatsu Chemicals, Incorporated
- 当前专利权人: Mitsui Toatsu Chemicals, Incorporated
- 当前专利权人地址: JA Tokyo
- 优先权: JA44-94624 19691127; JA45-988 19691229; JA45-11482 19700212
- 主分类号: C08F2/20
- IPC分类号: C08F2/20 ; C08F220/12 ; C08F220/32 ; C08L33/06 ; C09D133/06 ; C08F6/00 ; C08L33/04
摘要:
Solid copolymers are produced by copolymerizing a mixture of: (A) at least 30% by weight of a monomer having the formula: ##STR1## wherein R.sub.1 is H or CH.sub.3 and R.sub.2 is an alkyl radical containing from 1 to 14 carbon atoms; (B) from 3 to 20% by weight of an ethylenic .alpha., .beta. unsaturated carboxylic acid or anhydride thereof, or from 3 to 40% by weight of glycidyl acrylate or glycidyl methacrylate; and (C) from 0 to 67% by weight of a monomer copolymerizable with said monomers (A) and (B). Preferably, the mixture is first bulk-polymerized until conversion to the copolymer is from 10 to 80% by weight and the polymerization is completed by suspension-polymerization. Thermosetting solid coating compositions are produced by mixing a major proportion of a solid copolymer so produced with a minor proportion of a cross-linking compound or with an epoxy resin containing at least 2 epoxy radicals in the molecule in presence of a tertiary amine curing accelerator.
公开/授权文献
- US5643583A Cosmetic or pharmaceutical composition for topical use 公开/授权日:1997-07-01