Title:
HEAT CURABLE COMPOSITIONS FOR TINTABLE ABRASION RESISTANT TRANSPARENT HARD-COATINGS
Document Type and Number:
WIPO Patent Application WO/2011/117300
Kind Code:
A3
Abstract:
The present invention is relative to a heat-curable coating composition forming transparent tintable abrasion-resistant coatings, said compositions comprising, in an aqueous or hydro-organic solvent: (A) a hydrolysate of an epoxy-functional silane compound containing at least two alkoxy groups, (B) colloidal silica having an average particle diameter of 1 to 100 μm, (C) an aluminium chelate compound of formula A1(O-C1-4alkyl)nY3-n wherein n is 0, 1 or 2 and Y is a ligand selected from the group consisting of M-C(=O)-CH2-C(=O)-M and M-C(=O)-CH2-C(=O)O-M, wheren each M is independently a C1-4 alkyl group, and (D) a hydrolysate of a silylated poly(tetrahydrofurane) of formula (Ia) or (lb) said heat-curable composition not containing any multifunctional cross-linking agents selected from the group consisting of multifunctional carboxylic acids and multifunctional anhydrides.
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Inventors:
SONG LIXIN (FR)
TEO PUAT WEN (FR)
TEO PUAT WEN (FR)
Application Number:
PCT/EP2011/054451
Publication Date:
November 17, 2011
Filing Date:
March 23, 2011
Export Citation:
Assignee:
ESSILOR INT (FR)
SONG LIXIN (FR)
TEO PUAT WEN (FR)
SONG LIXIN (FR)
TEO PUAT WEN (FR)
International Classes:
C09D183/04; C09D201/10
Foreign References:
| US4355135A | 1982-10-19 | |||
| US20070104968A1 | 2007-05-10 | |||
| EP0407174A2 | 1991-01-09 | |||
| US20070021523A1 | 2007-01-25 |
Attorney, Agent or Firm:
PÖPPING, Barbara et al. (52 rue de la Victoire, Paris Cedex 09, FR)
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