US4487805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decorative epoxy resin aggregate binder formulation
Assignee: Huntsman Corp
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Filing: 1984-03-15
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Granted: 1984-12-11
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Expires: 2004-03-15
Abstract
Abstract A non-yellowing decorative epoxy resin aggregate binder formulation is disclosed. The formulation comprises 100 parts by weight polyepoxide, 25 parts by weight of a specified polyoxypropylene diamine, 26 parts by weight nonylphenol and 4 parts by weight N-aminoethylpiperazine and 1 to 3 parts by weight of a specified substituted benzotriazole UV absorber dissolved in xylene. Nonylphenol gives the formulation strength with flexibility and resistance to weathering with a high gloss appearance. The substituted benzotriazole UV absorber prevents yellowing of the clear coating. The formulation is useful as a clear coating to bind aggregate (colored pebbles) to a cement surface to form a decorative coating. The formulation is distinguished by its clear, non-yellowing appearance.
Inventors
- 👤 Kathy B. Sellstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:26
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/60; C04B41/61; C04B41/62; C04B41/63; C04B41/45; C04B41/46; C04B41/48; C04B41/4853; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/504; C08G59/5046; C08G59/5053; C08G59/5073; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3472; C08K5/3475; C08K5/3477; C08K5/3495; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
95 words
An epoxy resin composition comprising (a) a vicinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule; and (b) a stoichiometric amount of a curing agent comprising: (i) 20 to 30 parts by weight of a first diamine of the general formula: H.sub.2 NCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NH.sub.2 wherein x averages from 1 to 6; (ii) 20 to 30 parts by weight of nonylphenol; and (iii) 1 to 8 parts by weight of N-aminoethylpiperazine, and (iv) 0.8 to 5 parts by weight of a substituted benzotriazole UV absorber of the formula: ##STR13##
Claim 2
Dependent Claim
95 words
An epoxy resin composition comprising (a) a vicinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule; and (b) a stoichiometric amount of a curing agent comprising: (i) 20 to 30 parts by weight of a first diamine of the general formula: H.sub.2 NCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NH.sub.2 wherein x averages from 1 to 6; (ii) 20 to 30 parts by weight of nonylphenol; and (iii) 1 to 8 parts by weight of N-aminoethylpiperazine, and (iv) 0.8 to 5 parts by weight of a substituted benzotriazole UV absorber of the formula: ##STR13##
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein x averages from 2 to 3.
Claim 4
Dependent Claim
43 words
The composition of claim 1 wherein x averages from 2 to 3, the N-aminoethylpiperazine is in an amount of from 3 to 6 parts by weight and the substituted benzotriazole UV absorber is in an amount of 1 to 3 parts by weight.
Claim 5
Dependent Claim
39 words
The composition of claim 1 wherein x averages 2.6, the nonylphenol is in an amount approximately equal in parts by weight to the first diamine, the N-aminoethylpiperazine is in an amount of from 3 to 6 parts by weight.
Claim 6
Dependent Claim
25 words
The composition of claim 4 wherein the amount of substituted benzotriazole UV absorber is in an amount of about 1 to 3 parts by weight.
Claim 7
Dependent Claim
114 words
A decorative aggregate binder formulation comprising: (1) aggregate; (2) an epoxy resin composition in an amount to coat the aggregate, the epoxy resin composition comprising: (a) a vicinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule, and (b) a stoichiometric amount of a curing agent comprising: (i) 20 to 30 parts by weight of a first diamine of the formula: H.sub.2 NCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NH.sub.2 wherein x averages from 1 to 6; (ii) 20 to 30 parts by weight of nonylphenol; and (iii) 1 to 8 parts by weight of N-aminoethylpiperazine; and (iv) 0.8 to 5 parts by weight of a substituted benzotriazole UV absorber of the formula: ##STR14##
Claim 8
Dependent Claim
114 words
A decorative aggregate binder formulation comprising: (1) aggregate; (2) an epoxy resin composition in an amount to coat the aggregate, the epoxy resin composition comprising: (a) a vicinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule, and (b) a stoichiometric amount of a curing agent comprising: (i) 20 to 30 parts by weight of a first diamine of the formula: H.sub.2 NCH(CH.sub.3)CH.sub.2 [OCH.sub.2 CH(CH.sub.3)].sub.x NH.sub.2 wherein x averages from 1 to 6; (ii) 20 to 30 parts by weight of nonylphenol; and (iii) 1 to 8 parts by weight of N-aminoethylpiperazine; and (iv) 0.8 to 5 parts by weight of a substituted benzotriazole UV absorber of the formula: ##STR14##
Claim 9
Dependent Claim
12 words
The formulation of claim 6 wherein x averages from 2 to 3.
Claim 10
Dependent Claim
44 words
The formulation of claim 6 wherein x averages from 2 to 3, the nonylphenol is in an amount of approximately equal in parts by weight to the first diamine and the N-aminoethylpiperazine is in an amount of from 3 to 6 parts by weight.
Claim 11
Dependent Claim
40 words
The formulation of claim 6 wherein x averages 2.6, the nonylphenol is in an amount approximately equal in parts by weight to the first diamine and the N-aminoethylpiperazine is in an amount of from 3 to 6 parts by weight.
Claim 12
Dependent Claim
24 words
The formulation of claim 9 wherein the amount of substituted benzotriazole UV absorber is in an amount of 1 to 3 /parts by weight.
Claim 13
Dependent Claim
12 words
The decorative aggregate formulation of claim 6 coated on a concrete surface.
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) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |