Patent US2885380A successfully refreshed from Google Patents.
← Back to Patent Explorer
US2885380A Expired / Lapsed US ⏱️ 0.0 years remaining

Flame resistant composition comprising chlorinated polyester resin, inorganic oxide and an epoxide resin and method of preparing

Assignee: AT&T Inc
•
Filing: 1955-10-11
•
Granted: 1959-05-05
•
Expires: 1975-10-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Vito D Elarde

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 13:00
CPC Classifications
C; C08; C08L; C08L63/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 148 words
A FLAME RESISTANT COMPOSITION COMPRISING BY WEIGHT ONE AND ONE-HALF PARTS OF A HIGHLY CHLORINATED POLYMERIZED POLYESTER RESIN PREPARED FROM HEXACHLOROENDOMETHYLENE TETRAHYDROPHTHALIC ACID, A MIXTURE OF GLYCOLS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL, AND PROPYLENE GLYCOL, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MALEIC ANHYDRIDE AND FUMARIC ACID AND STYRENE, THE HEXACHLOROENDOMETHYLENE TETRAHYDROPHTHALIC ACID BEING PRESENT IN AN AMOUNT OF FROM 36 PERCENT TO 43 PERCENT BASED ON THE TOTAL WEIGHT OF THE POLYESTER COMPONENTS; ONE PART OF AN INORGANIC FLAME RETARDENT COMPOSED OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF BISMUTH OXIDE, ARSENIC OXIDE AND ANTIMONY TRIOXIDE; FOUR PARTS OF AN EXPOXIDE RESIN FORMED BY REACTING 45 PERCENT TO 70 PERCENT BIVALENT PHENOL WITH 20 PERCENT TO 43 PERCENT EPICHLOROHYDRINE AND ONE PART OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE DIAMINE, METAPHENYLENE DIAMINE, PIPERIDINE, TRIMETHYLENE DIAMINE, AND GUANIDINE.
Claim 2
Dependent Claim 148 words
A FLAME RESISTANT COMPOSITION COMPRISING BY WEIGHT ONE AND ONE-HALF PARTS OF A HIGHLY CHLORINATED POLYMERIZED POLYESTER RESIN PREPARED FROM HEXACHLOROENDOMETHYLENE TETRAHYDROPHTHALIC ACID, A MIXTURE OF GLYCOLS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL, AND PROPYLENE GLYCOL, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MALEIC ANHYDRIDE AND FUMARIC ACID AND STYRENE, THE HEXACHLOROENDOMETHYLENE TETRAHYDROPHTHALIC ACID BEING PRESENT IN AN AMOUNT OF FROM 36 PERCENT TO 43 PERCENT BASED ON THE TOTAL WEIGHT OF THE POLYESTER COMPONENTS; ONE PART OF AN INORGANIC FLAME RETARDENT COMPOSED OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF BISMUTH OXIDE, ARSENIC OXIDE AND ANTIMONY TRIOXIDE; FOUR PARTS OF AN EXPOXIDE RESIN FORMED BY REACTING 45 PERCENT TO 70 PERCENT BIVALENT PHENOL WITH 20 PERCENT TO 43 PERCENT EPICHLOROHYDRINE AND ONE PART OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE DIAMINE, METAPHENYLENE DIAMINE, PIPERIDINE, TRIMETHYLENE DIAMINE, AND GUANIDINE.

References Cited (Backward Citations)

US2779701A Cited
US2717216A Cited
US2783215A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-05-04 1962-11-03 1963-05-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-05-04 1966-11-03 1967-05-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-05-04 1970-11-03 1971-05-05 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag