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US4128696A Expired / Lapsed US ⏱️ 0.0 years remaining

Low pressure melamine resin laminates

Assignee: Formica Corp
•
Filing: 1977-02-11
•
Granted: 1978-12-05
•
Expires: 1997-02-11
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Abstract

Abstract A heat and pressure consolidated structure comprising, in superimposed relationship, (A) a self-supporting substrate, and (B) a decorative α-cellulose paper sheet impregnated with a composition comprising (1) a blend of an aqueous melamine/formaldehyde resin solution and from about 2% to about 20.0% of an ethylene glycol or (2) an aqueous solution of the resinous reaction product of melamine, formaldehyde and from about 2.0% to about 20.0% of an ethylene glycol, is disclosed.

Inventors

  • 👤 James C. Goebel
  • 👤 Darwin F. Delapp
  • 👤 Kenneth D. Bunkowski

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 01:47
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/04; B32B21/08; B32B21/06; B32B21/02; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49; D21H17/51; E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0871; B32B2317/00; B32B2317/12; B32B2317/125; B32B2607/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31591; Y10T428/31594; Y10T428/31725; Y10T428/31779; Y10T428/31783; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 233 words
A heat and low pressure consolidated laminate comprising (A) a self-supporting wood particleboard or wood fiberboard substrate and (B) a decorative cellulosic paper sheet impregnated with a composition of matter comprising (1) a blend of an aqueous melamine/formaldehyde resin solution and from about 2% to about 20%, by weight, based on the solids weight of said resin, of an ethylene glycol having a molecular weight of from about 62 to about 2100, or (2) an aqueous solution of the resinous reaction product of (I) melamine, (II) formaldehyde and (III) from about 2% to about 20.0%, by weight, based on the total weight of melamine and formaldehyde, of an ethylene glycol having a molecular weight of from about 62 to about 2100, wherein said (1) or (2) contains, in admixture therewith, (3) from about 2.5 to about 30.0%, by weight, based on the weight of resin solids, of an elastomer comprising (a) an ethylene/vinyl chloride copolymer containing from about 0.5% to about 7.0%, by weight, based on the total weight of (a), of amide groups, (b) a polyurethane resin containing from about 3.0% to about 10.0%, by weight, based on the total weight of (b), of carboxyl groups, or (c) a butadiene/acrylonitrile copolymer containing from about 1% to about 10.0%, by weight, based on the total weight of (c), of carboxyl groups said elastomer having a particle size of up to about 20,000 Angstroms.
Claim 2
Dependent Claim 233 words
A heat and low pressure consolidated laminate comprising (A) a self-supporting wood particleboard or wood fiberboard substrate and (B) a decorative cellulosic paper sheet impregnated with a composition of matter comprising (1) a blend of an aqueous melamine/formaldehyde resin solution and from about 2% to about 20%, by weight, based on the solids weight of said resin, of an ethylene glycol having a molecular weight of from about 62 to about 2100, or (2) an aqueous solution of the resinous reaction product of (I) melamine, (II) formaldehyde and (III) from about 2% to about 20.0%, by weight, based on the total weight of melamine and formaldehyde, of an ethylene glycol having a molecular weight of from about 62 to about 2100, wherein said (1) or (2) contains, in admixture therewith, (3) from about 2.5 to about 30.0%, by weight, based on the weight of resin solids, of an elastomer comprising (a) an ethylene/vinyl chloride copolymer containing from about 0.5% to about 7.0%, by weight, based on the total weight of (a), of amide groups, (b) a polyurethane resin containing from about 3.0% to about 10.0%, by weight, based on the total weight of (b), of carboxyl groups, or (c) a butadiene/acrylonitrile copolymer containing from about 1% to about 10.0%, by weight, based on the total weight of (c), of carboxyl groups said elastomer having a particle size of up to about 20,000 Angstroms.
Claim 3
Dependent Claim 21 words
An article according to claim 1 wherein said ethylene glycol is a polyethylene glycol having a molecular weight of about 600.
Claim 4
Dependent Claim 13 words
An article according to claim 1 wherein said ethylene glycol is diethylene glycol.
Claim 5
Dependent Claim 13 words
An article according to claim 1 wherein said ethylene glycol is ethylene glycol.
Claim 6
Dependent Claim 14 words
An article according to claim 1 wherein said composition contains (4) an alkylene polyamine.

References Cited (Backward Citations)

US2724675A Cited
US3458465A Cited
US3551272A Cited
US3933755A Cited
GB1417421A Cited
US4006048A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-12-04 1982-06-05 1982-12-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-12-04 1986-06-05 1986-12-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-12-04 1990-06-05 1990-12-05 $7700.00 Window Closed / Lapsed

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