BINDER FOR INORGANIC/ORGANIC COMPOSITE COATING AGENT

Title:

BINDER FOR INORGANIC/ORGANIC COMPOSITE COATING AGENT

Document Type and Number:

Japanese Patent JPH09208896

Kind Code:

A

Abstract:

To provide a binder made from a polyol component comprising a hydroxy acrylate copolymer and a fluorocopolymer and colloidal silica or a siloxane-bond-containing isocyanate.

This binder comprises a mixture of 95-30wt.% polyol component (A) having a hydroxyl value of 20-200mgKOH/g with 5-70wt.% colloidal silica and/or siloxane-bond-containing isocyanate compound (B). Component A, which is an organic binder, comprises a hydroxy acryl copolymer (e.g. hydroxyethyl (meth)acrylate) having a weight-average molecular weight o 104 to 105 and a fluorocopolymer comprising a fluoroolefin, cyclohexyl vinyl ether, a (hydroxy) alkyl vinyl ether or cyclohexyl vinyl ether and having a weight-average molecular weight of 2×104 to 2×105. This is obtained by simply mixing an organic component with an inorganic component in a suitably selected mixing ratio and can form a composite coating film excellent in cracking resistance and weather resistance.

Inventors:

SAEGUSA KAZUMASA
SAIKI IKUO
SAGAWA TADATOSHI

Application Number:

JP1345996A

Publication Date:

August 12, 1997

Filing Date:

January 30, 1996

Export Citation:

Click for automatic bibliography generation Help

Assignee:

DAINIPPON TORYO KK

International Classes:

C08G18/40; C08G18/62; C09D1/00; C09D127/12; C09D175/00; C09D175/04; C09D183/04; C09D201/02; C09D201/06; C09D201/10; (IPC1-7): C09D175/04; C08G18/40; C09D1/00; C09D127/12; C09D183/04; C09D201/02; C09D201/06; C09D201/10

Attorney, Agent or Firm:

Yamashita

Previous Patent: TWO-COMPONENT SOLVENTLESS URETHANE RESIN COATING MATERIAL

Next Patent: COATING FILM HAVING LOW REFRACTIVE INDEX AND WATER REPELLENCY