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US3849527A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for making reinforced or filled resin products

Assignee: Individual
•
Filing: 1973-05-31
•
Granted: 1974-11-19
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Expires: 1993-05-31
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Abstract

Abstract 1. A METHOD FOR MANUFACTURING PRODUCTS OF ARTICLES OR REINFORCED OR FILLED POLYESTERS, HARDENABLE BY MEANS OF A LIQUID ETHYLENICALLY UNSATURATED MONOMERIC CROSSLINKING COMPOUND WHICH IS A SOLVENT FOR SAID POLYESTER, IN THE PRESENCE OF A CATALYST, WHICH METHOD COMPRISES DRY MIXING THE POLYESTER WITH THE REINFORCING OF FILLING MATERIAL IN THE ABSENCE OF THE CROSSLINKING COMPOUND AND THE CATALYST, IMPARTING THE DESIRED SHAPE TO THE MIXTURE OF POLYESTER AND REINFORCING OR FILLING MATERIAL, THERAFTER ADDING THE LIQUID CORSSLINKING COMPOUND AND CATALYST IN THE ABSENCE OF THE POLYESTER TO THE SAHPED MIXTURE OF POLYESTER AND REINFORCING OR FILLING MATERIAL, AND THEREAFTER CURING THE RESIN MATERIALS TO FORM THE PRODUCT.

Inventors

  • 👤 F Drostholm

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 23:00
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08J3/20; C08J3/203; C08J2367/00; C08J2367/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 108 words
A METHOD FOR MANUFACTURING PRODUCTS OF ARTICLES OR REINFORCED OR FILLED POLYESTERS, HARDENABLE BY MEANS OF A LIQUID ETHYLENICALLY UNSATURATED MONOMERIC CROSSLINKING COMPOUND WHICH IS A SOLVENT FOR SAID POLYESTER, IN THE PRESENCE OF A CATALYST, WHICH METHOD COMPRISES DRY MIXING THE POLYESTER WITH THE REINFORCING OF FILLING MATERIAL IN THE ABSENCE OF THE CROSSLINKING COMPOUND AND THE CATALYST, IMPARTING THE DESIRED SHAPE TO THE MIXTURE OF POLYESTER AND REINFORCING OR FILLING MATERIAL, THERAFTER ADDING THE LIQUID CORSSLINKING COMPOUND AND CATALYST IN THE ABSENCE OF THE POLYESTER TO THE SAHPED MIXTURE OF POLYESTER AND REINFORCING OR FILLING MATERIAL, AND THEREAFTER CURING THE RESIN MATERIALS TO FORM THE PRODUCT.
Claim 2
Independent Claim 108 words
A METHOD FOR MANUFACTURING PRODUCTS OF ARTICLES OR REINFORCED OR FILLED POLYESTERS, HARDENABLE BY MEANS OF A LIQUID ETHYLENICALLY UNSATURATED MONOMERIC CROSSLINKING COMPOUND WHICH IS A SOLVENT FOR SAID POLYESTER, IN THE PRESENCE OF A CATALYST, WHICH METHOD COMPRISES DRY MIXING THE POLYESTER WITH THE REINFORCING OF FILLING MATERIAL IN THE ABSENCE OF THE CROSSLINKING COMPOUND AND THE CATALYST, IMPARTING THE DESIRED SHAPE TO THE MIXTURE OF POLYESTER AND REINFORCING OR FILLING MATERIAL, THERAFTER ADDING THE LIQUID CORSSLINKING COMPOUND AND CATALYST IN THE ABSENCE OF THE POLYESTER TO THE SAHPED MIXTURE OF POLYESTER AND REINFORCING OR FILLING MATERIAL, AND THEREAFTER CURING THE RESIN MATERIALS TO FORM THE PRODUCT.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-18 1978-05-20 1978-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-18 1982-05-20 1982-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-18 1986-05-20 1986-11-19 $7700.00 Window Closed / Lapsed

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