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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) Application No.: 00897/KOLNP/2005 A
(22) Date of filing of Application: 16/05/2005 (43) Publication Date: 09/06/2006
(54) Title of the invention: EPOXY RESIN CURING AGENT FOR ENHANCED WEAR RESISTANCE AND
WEATHERABILITY OF CURED MATERIALS
(51) International classification : C08K
5/5419,C08G
59/40,C09D 163/00
(31) Priority Document No : 20024990
(32) Priority Date : 16/10/2002
(33) Name of priority country : NO
(86) International Application No and : PCT/NO03/00342
Filing Date
: 16/10/2003
(87) International Publication No : WO 04/035675 A1
(61) Patent of addition to Application No : NIL
Filed on : N.A.
(62) Divisional to Application No : NIL
Filed on : N.A.
(57) Abstract:
(71) Name of Applicant:
SINTEF
Address of the Applicant:
RICHARD BIRKELANDS VEI 2B,N-7466
TRONDHEIM NORWAY
(72) Name of the Inventor:
1. REDFORD KEITH
2. MANNLE FERDINAND
3. GAARDER RUNE H
Filed U/S 5(2) before The Patents (Amendment)
Act, 2005: NO
Hardener for curing of epoxy resins which produces materials with high abrasion resistance, photostability and chemical resistance. The
hardener comprises a sol prepared by controlled hydrolysis and condensation of compounds of the type: (X-B-)n Si(-Y)4-n where n = 1 or
2, X = SH, -N=C=O, or NR1R2, R1, R2 being chosen from hydrogen, saturated or unsaturated C1-C18-alkyl, substituted or non-substituted
aryl, formyl, aliphatic or aromatic carbonyl, carbamoyl, sulphonyl, sulphoxyl, phosphonyl, sulphinyl, phosphinyl, while the carbon chains
of said compounds may include one or more of the elements oxygen, nitrogen, sulphur, phosphorus, silicon and boron, and/or may
include one or more hydrolysable silane units, or R 1, R2 are chosen from condensation products or addition products of one or more
types or chemical compounds such as acids, alcohols, phenols, amines, aldehydes or epoxides. B is a spacing group chosen from
saturated or unsaturated C1-C18-alkylene, substituted or nonsubstituted arylene, while the carbon chains of the stated compounds may
optionally include one or more of the elements oxygen, nitrogen, sulphur, phosphorus, silicon and boron. Y is chosen from hydrolisable
groups such as alkoxy, carboxyl, and halogen.
(FIG. - Nil)
The Patent Office Journal 09/06/2006 11044