EP0274428A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Organoalkoxysilane-containing coating composition
Assignee: JSR Corp
•
Filing: 1988-01-06
•
Granted: —
•
Expires: 2008-01-06
Abstract
Abstract A coating composition comprising: (a) 100 parts by weight (in terms of organoalkoxysilane) of at least one compound selected from the group consisting of (a') an organoalkoxysilane represented by the general formula (I): wherein R is an organic group having 1-8 carbon atoms and R is an alkyl group having 1-5 carbon atoms or an acyl group having 1-4 carbon atoms, (a") a hydrolyzate of (a') and (a''') a partial condensate of (a'), (b) 5-50 parts by weight (as solids) of colloidal alumina, and (c) 2-200 parts by weight of at least one organopolysiloxane having at least one reactive functional group in the polymer molecule and/or (d) 3-6,000 parts by weight of at least one silyl group-containing vinyl polymer having, at the terminal(s) or side chain(s) of the polymer molecule, at least one silyl group having a silicon atom having bonded thereto a hydrolyzable group, and (e) an organic solvent. Said coating composition is excellent in storage stability, can be used at low temperatures and can form a coating film superior in heat resistance, water resistance, boiling water resistance, organic chemical resistance, acid resistance, alkali resistance, corrosion resistance, absorbability and radiatability of heat and light, friction resistance, weather resistance, moisture resistance, salt water resistance, adhesion, hardness and smoothness.
Inventors
- 👤 Hideyuki Hanaoka
- 👤 Kazuo Yamamoto
- 👤 Toshiyuki Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 01:39
CPC Classifications
C; C09; C09D; C09D143/00; C09D143/04; C09D183/00; C09D183/04; C08; C08L; C08L2205/00; C08L2205/02; C08L83/00; C08L83/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
155 words
A coating composition comprising: (a) 100 parts by weight (in terms of organoalkoxysilane) of at least one compound selected from the group consisting of (a') an organoalkoxysilane represented by the general formula (I): wherein R is an organic group having 1-8 carbon atoms and R 1 is an alkyl group having 1-5 carbon atoms or an acyl group having 1-4 carbon atoms, (a") a hydrolyzate of the organoalkoxysilane (a') and (a"') a partial condensate of the organoalkoxysilane (a'), (b) 5-50 parts by weight (as solids) of colloidal alumina, and (c) 2-200 parts by weight of at least one organopolysiloxane having at least one reactive functional group in the polymer molecule and/or (d) 3-6,000 parts by weight of at least one silyl group-containing vinyl polymer having, at the terminal(s) or side chain(s) of the polymer molecule, at least one silyl group having a silicon atom having bonded thereto a hydrolyzable group, and (e) an organic solvent.
Claim 2
Dependent Claim
155 words
A coating composition comprising: (a) 100 parts by weight (in terms of organoalkoxysilane) of at least one compound selected from the group consisting of (a') an organoalkoxysilane represented by the general formula (I): wherein R is an organic group having 1-8 carbon atoms and R 1 is an alkyl group having 1-5 carbon atoms or an acyl group having 1-4 carbon atoms, (a") a hydrolyzate of the organoalkoxysilane (a') and (a"') a partial condensate of the organoalkoxysilane (a'), (b) 5-50 parts by weight (as solids) of colloidal alumina, and (c) 2-200 parts by weight of at least one organopolysiloxane having at least one reactive functional group in the polymer molecule and/or (d) 3-6,000 parts by weight of at least one silyl group-containing vinyl polymer having, at the terminal(s) or side chain(s) of the polymer molecule, at least one silyl group having a silicon atom having bonded thereto a hydrolyzable group, and (e) an organic solvent.
Claim 3
Dependent Claim
19 words
The coating composition according to Claim 1, wherein the total solid content in the composition is 10-50% by weight.
Claim 4
Dependent Claim
35 words
The coating composition according to Claim 1, wherein the component (a) is a partical condensate (a'") of an organoalkoxysilane (a') represented by the formula (I) and has a polystyrene-reduced weight average molecular weight of 500-50,000.
Claim 5
Dependent Claim
53 words
The coating composition according to Claim 3, wherein the organoalkoxysilane (a') represented by the formula (I) is at ieast one member selected from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, methyltriacetoxysilane, methyltriproplonyloxysidane, ethyltrimethoxysilane, ethyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, gamma-chloropropyltrimethoxysilane, gamma-chloropropyltriethoxysilane, vinyltrimethoxysilane, vinyltriethoxysiJane, 3,3,3-trlfluoropropyltri- methoxysilane, 3,3,3-trifluoropropyltriethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, gamma-methacryloyloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, gamma-mercaptopropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane phenyltrimethoxysilane, phenyltriethoxysilane, 3,4-epoxycyclohexylethyltrimethoxysilane and 3,4-epoxycyclohexylethyltriethoxysilane.
Claim 6
Dependent Claim
21 words
The coating composition according to Claim 1, wherein the amount of the component (b) is 8-40 parts by weight (as solids).
Claim 7
Dependent Claim
19 words
The coating composition according to Claim 1, wherein the amount of the component (c) is 5-50 parts by weight.
Claim 8
Dependent Claim
72 words
The coating composition according to Claim 1, wherein the component (c) is an organopolysiloxane having a unit structure represented by the formula (III): wherein R 3 is an organic group having 1-8 carbon atoms and a is a positive number of 1.1-1.8 and having in the molecule at least one reactive functional group -OX' bonded to the silicon atom (X' is a hydrogen atom or an alkyl group having 1-5 carbon atoms).
Claim 9
Dependent Claim
71 words
The coating composition according to Claim 1, wherein the silyl group of the component (d) is a silyl group represented by the formula (IV): wherein X is a halogen atom, a hydroxyl group, an alkoxy group, an acyloxy group, a phenoxy group, a thioalkoxy group or an amino group, R 4 is a hydrogen atom, a C 1-10 alkyl group or a C7-10aralkyl group, and n is an integer of 1-3.
Claim 10
Dependent Claim
109 words
The coating composition according to Claim 8, wherein the component (d) is (i) a reaction product of a hydrosilane compound with a vinyl resin having carbon to carbon double bonds, or (ii) a polymerization product of a vinyl compound with a silane compound represented by the formula (V) : wherein R 4 is a hydrogen atom, a C 1-10 alkyl group or a C 7-10 aralkyl group, X is a halogen atom, an alkoxy group, an acyloxy group, a hydroxyl group, a phenoxy group, a thioalkoxy group or an amino group, R 5 is an organic group having an polymerizable double bond, and n is an integer of 1-3.
Claim 11
Dependent Claim
19 words
The coating composition according to Claim 1, wherein the amount of the component (d) is 10-3,000 parts by weight.
Claim 12
Dependent Claim
29 words
The coating composition according to Claim 1, wherein the component (e) is at least one member selected from the group consisting of alcohols, aromatic hydrocarbons, ethers, ketones and esters.
Claim 13
Dependent Claim
13 words
The coating composition according to Claim 1, which further comprises a hardening accelerator.
Claim 14
Dependent Claim
30 words
The coating composition according to Claim 12, wherein the amount of the hardening accelerator is not more than 15 parts by weight per 100 parts by weight of the composition.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.