US4152320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retardant, wood-bonding adhesive containing sulfur
Assignee: Albemarle Corp
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Filing: 1977-02-14
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Granted: 1979-05-01
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Expires: 1997-02-14
Abstract
Abstract A wood-bonding adhesive containing as the adhesive base sulfur and a synthetic thermosetting urea resin, phenol resin, melamine resin, resorcinol resin and a flame retardant mixture of compounds selected from styrene, maleic acid related materials, dicyclopentadiene and the like. Also, a method of adhesively bonding wood adherends together and an article bonded by the adhesive are disclosed.
Inventors
- 👤 Hymin Shapiro
- 👤 Robert N. Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:56
CPC Classifications
C; C09; C09J; C09J161/00; C08; C08L; C08L2666/00; C08L2666/28; C08L2666/54; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/3196
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
A cost effective, fire retardant, plywood adhesive composition containing as the binder thereof from about 30 to about 60 weight percent of sulfur and from about 70 to about 40 weight percent of a synthetic thermosetting resin selected from urea resins, melamine resins, phenol resins, resorcinol resins and mixtures of these and as the fire retardant component from about 1 to about 5 weight percent based on the total adhesive weight of a mixture of dicyclopentadiene, styrene and a member of the group consisting of maleic acid; alkyl mono- and diesters of maleic, fumaric and phthalic acid having from 4 to about 8 carbon atoms in each alkyl group; brominated styrene; and triphenyl phosphate or methyl-substituted triphenyl phosphate having from 1 to 3 methyl groups attached to the phenyl ring.
Claim 2
Dependent Claim
130 words
A cost effective, fire retardant, plywood adhesive composition containing as the binder thereof from about 30 to about 60 weight percent of sulfur and from about 70 to about 40 weight percent of a synthetic thermosetting resin selected from urea resins, melamine resins, phenol resins, resorcinol resins and mixtures of these and as the fire retardant component from about 1 to about 5 weight percent based on the total adhesive weight of a mixture of dicyclopentadiene, styrene and a member of the group consisting of maleic acid; alkyl mono- and diesters of maleic, fumaric and phthalic acid having from 4 to about 8 carbon atoms in each alkyl group; brominated styrene; and triphenyl phosphate or methyl-substituted triphenyl phosphate having from 1 to 3 methyl groups attached to the phenyl ring.
Claim 3
Dependent Claim
14 words
The composition of claim 1 wherein said synthetic thermosetting resin is a urea resin.
Claim 4
Dependent Claim
14 words
The composition of claim 1 wherein said synthetic thermosetting resin is a phenol resin.
Claim 5
Dependent Claim
14 words
The composition of claim 1 wherein said synthetic thermosetting resin is a melamine resin.
Claim 6
Dependent Claim
14 words
The composition of claim 1 wherein said synthetic thermosetting resin is a resorcinol resin.
Claim 7
Dependent Claim
14 words
The composition of claim 1 wherein said synthetic thermosetting resin is a urea-melamine resin.
Claim 8
Dependent Claim
14 words
The composition of claim 1 wherein said synthetic thermosetting resin is a urea-phenol resin.
Claim 9
Dependent Claim
38 words
The composition of claim 1 wherein said adhesive contains from 40 to 50 weight percent sulfur and from 60 to 50 weight percent of synthetic thermosetting resin selected from urea resin, melamine resin, phenol resin and resorcinol resin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |