EP0249201A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
High solids sag resistant cycloaliphatic epoxy coatings containing low molecular weight high Tg organic polymeric sag resisting additives
Assignee: Union Carbide Corp
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Filing: 1987-06-10
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Granted: —
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Expires: 2007-06-10
Abstract
Abstract Sprayable, thermosetting, sag-resistant coating composition comprising at least 50 weight percent nonvolatiles comprising: (a) 100 weight parts of a crosslinkable cycloaliphatic epoxy containing at least one cycloaliphatic ring, (b) 0 to 100 weight parts of a crosslinking/chain-extending agent compatible with and capable of crosslinking and/or chain-extending said epoxy, and (c) a sag control system comprising 5 to 40 weight parts of an organic polymer having a glass transition temperature of at least 25°C and a number average molecular weight of not more than 12,000.
Inventors
- 👤 Steven J. Kubisen, Jr.
- 👤 Robert F. Eaton
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 17:32
CPC Classifications
C; C09; C09D; C09D163/00; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
71 words
A thermosetting, sag-resistant coating composition comprising at least 50 wt. t nonvolatiles comprising: (a) a crosslinkable cycloaliphatic epoxy containing at least one cycloaliphatic ring, (b) a crosslinking/ehain-extending agent compatible with and capable of crosslinking and/or chain-extending said epoxy, (c) a sag control system comprising an organic polymer having a glass transition temperature of at least 25°C and a number average molecular weight of not more than 12,000, and (d) a catalyst.
Claim 2
Dependent Claim
71 words
A thermosetting, sag-resistant coating composition comprising at least 50 wt. t nonvolatiles comprising: (a) a crosslinkable cycloaliphatic epoxy containing at least one cycloaliphatic ring, (b) a crosslinking/ehain-extending agent compatible with and capable of crosslinking and/or chain-extending said epoxy, (c) a sag control system comprising an organic polymer having a glass transition temperature of at least 25°C and a number average molecular weight of not more than 12,000, and (d) a catalyst.
Claim 3
Dependent Claim
82 words
The composition of claim 1 comprising: (a) 100 weight parts of the crosslinkable cycloaliphatic epoxy containing at least one cycloaliphatic ring, (b) 0 to 300 weight parts of the crosslinking chain-extending agent compatible with and capable of crosslinking and/or chain-extending said epoxy, and (c) the sag control system composing 5 to 40 weight parts of an organic polymer having a glass transition temperature of at least 25°C and a number average molecular weight of not more than 12,000, and (d) the catalyst.
Claim 4
Dependent Claim
41 words
Composition as claimed in claim 1 or 2 wherein said organic polymer has a number average molecular weight of 1,000 to 12,000 or of 1,000 to 8,000 and a glass transition temperature of 25°C to 250°C or of 30°C to 150°C.
Claim 5
Dependent Claim
13 words
Composition as claimed in claims 1 to 3 wherein the epoxy is 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexylcarboxylate.
Claim 6
Dependent Claim
15 words
Composition as claimed in claims 1 to 3 wherein the crosslinking agent is a polyol.
Claim 7
Dependent Claim
15 words
Composition as claimed in claim 5 wherein the crosslinking agent is also a flexibilizing agent.
Claim 8
Dependent Claim
35 words
Composition as claimed in claim 5 or 6 wherein the polyol is a polycaprolactone polyol having an average molecular weight of from 290 to ; 6,000 and an average hydroxyl number of 15 to 600.
Claim 9
Dependent Claim
27 words
8 . Composition as claimed in claim 7 wherein the polycaprolactone has an average molecular weight of about 900 and an average hydroxyl number of about 187.
Claim 10
Dependent Claim
37 words
Composition as claimed in claims 1 to 8 wherein the organic polymer is a vinyl polymer, preferably a terpolymer of vinyl chloride, vinyl acetate, and a hydroxy-containing monomer or a copolymer of vinyl chloride and vinyl acetate.
Claim 11
Dependent Claim
20 words
Composition as claimed in claims 1 to 8 wherein the organic polymer is a copolymer of styrene and allyl alcohol.
Claim 12
Dependent Claim
14 words
Composition as claimed in claims 1 to 10 further comprising a Lewis acid catalyst.
Claim 13
Dependent Claim
18 words
Compositbn as claimed in claims 1 to 10 wherein the catalyst is an onium salt catalyst, preferably diethylammoniumtriflate.
Claim 14
Dependent Claim
13 words
Composition as claimed in claims 1 to 12 further comprising a silicone surfactant.
Claim 15
Dependent Claim
44 words
Composition as claimed in claim 2 comprising at least 50 weight percent nonvolatiles comprising: (a) 100 weight parts of the crosslinkable cycloaliphatic epoxy, (b) 25 to 100 weight parts of the crosslinking agent, and (c) 5 to 40 weight parts of the organic polymer.
References Cited (Backward Citations)
No citation records indexed.
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