In-mold coating composition

Assignee: Takeda Pharmaceutical Co Ltd

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Filing: 1985-04-03

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Granted: 1986-07-29

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Expires: 2005-04-03

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Abstract

Abstract One-package type composition for in-mold coating is disclosed which contains (a) a urethane compound having at least two acryloyloxy or methacryloyloxy groups at the terminal and at least one 1-oxa-3,5-diazine-2,4,6-trione ring in the molecule, (b) an ester resin having at least one reactive double bond prepared by the reaction of an epoxy compound with an unsaturated carboxylic acid and (c) a vinyl monomer. The composition is useful for coating the molded product from fiberglass reinforced thermosetting polyester resin compounds within a mold. The composition, when coated, shows excellent adherence to the molded product and excellent water resistance.

Inventors

👤 Kenichi Nishino
👤 Hiromu Miyashita
👤 Tadao Fukui

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-25 18:02

CPC Classifications

C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/7875; C08G18/7887; B; B29; B29C; B29C43/00; B29C43/02; B29C43/20; B29C43/203; B29C51/00; B29C51/14; C08F; C08F299/00; C08F299/02; C08F299/026; C08F299/06; C08F299/065; C08G18/28; C08G18/67; C08G18/671; C08G18/672; C09; C09D; C09D163/00; C09D163/10; Y; Y10; Y10S; Y10S525/00; Y10S525/92

Claims Analysis

Total Claims: 5

Claim 1

Independent Claim 59 words

A one-package composition for in-mold coating, which contains (a) a urethane compound having at least two terminal acryloyloxy or methacryloyloxy groups and at least one 1-oxa-3,5-diazine-2,4,6-trione ring in the molecule, (b) an ester resin having at least one reactive double bond prepared by the reaction of an epoxy compound with an unsaturated carboxylic acid and (c) a vinyl monomer.

Claim 2

Dependent Claim 59 words

Claim 3

Dependent Claim 48 words

The one-package composition for in-mold coating according to claim 1, wherein the composition is that prepared by formulating 50 to 500 parts by weight of the component (b) and 50 to 500 parts by weight of the component (c) to 100 parts by weight of the component (a).

Claim 4

Dependent Claim 89 words

The one-package composition for in-mold coating according to claim 1, wherein the component (a) is produced by reacting a polyisocyanate compound having at least one 1-oxa-3,5-diazine-2,4,6-trione ring in the molecule with an active hydrogen compound at an isocyanate/active hydrogen ratio in the range of 1.3 to 4.0 to produce an isocyanate-terminated urethane prepolymer having the trione rings in the molecule and, then, reacting the prepolymer with a compound having hydroxyl and acryloyloxy or methacryloyloxy groups in the molecule at an isocyanate/hydroxyl ratio in the range of 1.0 to 0.5.

Claim 5

Dependent Claim 36 words

The one-package composition for in-mold coating according to claim 1, wherein the epoxy compound is a glycidyl ether of polyhydric alcohol or polyhydric phenol having a molecular weight per epoxide group of about 150 to 2000.

References Cited (Backward Citations)

US100701A Cited

US4081578A Cited

GB1590255A Cited

US4288569A Cited

EP0039588A2 Cited

US4422996A Cited

US4331735A Cited

UST100701I4 Cited

US4374238A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1989-07-28	1990-01-27	1990-07-29	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1993-07-28	1994-01-27	1994-07-29	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1997-07-28	1998-01-27	1998-07-29	$7700.00	Window Closed / Lapsed

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