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Patent US5324757A successfully refreshed from Google Patents.
US5324757A
Expired / Lapsed
US
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Resin-based artificial marble compositions
Assignee: Alcan Chemicals Ltd
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Filing: 1990-07-19
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Granted: 1994-06-28
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Expires: 2010-07-19
Abstract
Abstract PCT No. PCT/GB90/01108 Sec. 371 Date Nov. 27, 1992 Sec. 102(e) Date Nov. 27, 1992 PCT Filed Jul. 19, 1990 PCT Pub. No. WO91/01353 PCT Pub. Date Feb. 7, 1991.A resin-based composition for casting artificial marble has excellent resistance to hot water. The composition includes an unsaturated polyester resin and a gibbsite-type aluminum hydroxide which has been surface-treated with an ethylenically unsaturated silane coupling agent.
Inventors
- 👤 Jun Ohkawa, deceased
- 👤 Toshihiro Matsuba
- 👤 Masashi Ishizaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:29
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/10; C04B26/18; C08; C08K; C08K9/00; C08K9/04; C08K9/06; C04B2111/00; C04B2111/54; C04B2111/542; C04B2111/545
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
167 words
A resin-based composition for casting artificial marble with excellent resistance to hot water, which consists essentially of 100 parts by weight of an unsaturated polyester resin and from 50 to 350 parts by weight of a gibbsite-type aluminium hydroxide which has been surface-treated with a silane coupling agent having an ethylenic double bond in the molecule and which is characterised in that: (A) the unsaturated polyester resin is composed of from 40 to 70% by weight of an alpha,beta-ethylenically unsaturated polyester having a number-average molecular weight of 2,000 or more and a double bond concentration of 2.00×10 -3 mol/g or more and from 30 to 60% by weight of a polymerizable unsaturated monomer; and (B) the gibbsite-type aluminium hydroxide has a BET specific surface area of 2.5 m 2 /g or less as measured by nitrogen gas adsorption and has a soluble soda content of 0.01% by weight or less as Na 2 O the soluble soda content being present mainly on the surface as an impurity.
Claim 2
Dependent Claim
167 words
A resin-based composition for casting artificial marble with excellent resistance to hot water, which consists essentially of 100 parts by weight of an unsaturated polyester resin and from 50 to 350 parts by weight of a gibbsite-type aluminium hydroxide which has been surface-treated with a silane coupling agent having an ethylenic double bond in the molecule and which is characterised in that: (A) the unsaturated polyester resin is composed of from 40 to 70% by weight of an alpha,beta-ethylenically unsaturated polyester having a number-average molecular weight of 2,000 or more and a double bond concentration of 2.00×10 -3 mol/g or more and from 30 to 60% by weight of a polymerizable unsaturated monomer; and (B) the gibbsite-type aluminium hydroxide has a BET specific surface area of 2.5 m 2 /g or less as measured by nitrogen gas adsorption and has a soluble soda content of 0.01% by weight or less as Na 2 O the soluble soda content being present mainly on the surface as an impurity.
Claim 3
Dependent Claim
41 words
A resin-based composition as claimed in claim 1, wherein the alpha,beta-ethylenically unsaturated polyester is one obtained by the polycondensation of a saturated dibasic acid or an anhydride thereof, or an alpha,beta-unsaturated dibasic acid or an anhydride thereof, and a polyhydric alcohol.
Claim 4
Dependent Claim
40 words
A resin-based composition as claimed in claim 1, wherein the dibasic acid is isophthalic acid or terephthalic acid, and the polyhydric alcohol (s neopentyl alcohol, an adduct of bisphenol A with propylene oxide or ethylene oxide, or hydrogenated bisphenol A.
Claim 5
Dependent Claim
17 words
A resin-based composition as claimed in claim 1, wherein the silane coupling agent is gamma-methacryloxy-propyl-trimethoxysilane or vinyltrimethoxysilane.
Claim 6
Dependent Claim
26 words
A resin-based composition as claimed in claim 1, wherein the aluminium hydroxide has been treated with 0.2% by weight or more of the silane coupling agent.
Claim 7
Dependent Claim
27 words
A resin-based composition as claimed in claim 5, wherein the aluminium hydroxide has been treated with from 0.5 to 2% by weight of the silane coupling agent.
Claim 8
Dependent Claim
23 words
A resin-based composition as claimed in claim 1, wherein the aluminium hydroxide has a mean grain size of from 3 to 80 microns.
Claim 9
Dependent Claim
15 words
A resin-based composition as claimed in claim 1, wherein the polymerisable unsaturated monomer is styrene.
Claim 10
Dependent Claim
16 words
An article when formed by casting and curing a resin-based composition as claimed in claim 1.
Claim 11
Dependent Claim
33 words
An article as claimed in claim 9, including a clear coating layer made from either the same or a different unsaturated polyester resin as is used to make the body of the article.
Claim 12
Dependent Claim
17 words
A resin-based composition as claimed in claim 2, wherein the silane coupling agent is gamma-methacryloxy-propyl-trimethoxysilane or vinyl-trimethoxysilane.
Claim 13
Dependent Claim
17 words
A resin-based composition as claimed in claim 3, wherein the silane coupling agent is gamma-methacryloxy-propyl-trimethoxysilane or vinyl-trimethoxysilane.
Claim 14
Dependent Claim
26 words
A resin-based composition as claimed in claim 2, wherein the aluminum hydroxide has been treated with 0.2% by weight or more of the silane coupling agent.
Claim 15
Dependent Claim
26 words
A resin-based composition as claimed in claim 3, wherein the aluminum hydroxide has been treated with 0.2% by weight of more of the silane coupling agent.
Claim 16
Dependent Claim
26 words
A resin-based composition as claimed in claim 13, wherein the aluminum hydroxide has been treated with 0.2% by weight or more of the silane coupling agent.
Claim 17
Dependent Claim
23 words
A resin-based composition as claimed in claim 2, wherein the aluminum hydroxide has a mean grain size of from 3 to 80 microns.
Claim 18
Dependent Claim
23 words
A resin-based composition as claimed in claim 3, wherein the aluminum hydroxide has a mean grain size of from 3 to 80 microns.
Claim 19
Dependent Claim
15 words
A resin-based composition as claimed in claim 4, wherein the polymerizable unsaturated monomer is styrene.
Claim 20
Dependent Claim
15 words
An article formed by casting and curing a resin-based composition as claimed in claim 4.
Claim 21
Dependent Claim
33 words
An article as claimed in claim 19, including a clear coating layer made from either the same or a different unsaturated polyester resin as is used to make the body of the article.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-27 | 1997-12-27 | 1998-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-27 | 2001-12-27 | 2002-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-27 | 2005-12-27 | 2006-06-28 | $7700.00 | Window Closed / Lapsed |