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US3020254A Expired / Lapsed US ⏱️ 0.0 years remaining

Phenolic resin and molding composition

Assignee: Hooker Chemical Corp
•
Filing: 1955-08-09
•
Granted: 1962-02-06
•
Expires: 1975-08-09
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Abstract

No abstract record available.

Inventors

  • 👤 Frank W Less
  • 👤 Jay C Searer
  • 👤 Eugene C Roeck

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 00:43
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D3/285; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/22; B22C1/2233; B22C1/2246; B22C1/2253; C; C08; C08K; C08K5/00; C08K5/04; C08K5/09

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 205 words
A MOLDABLE COMPOSITION COMPRISING AS A MAJOR COMPONENT SOLID DISCRETE INERT FILLER PARTICLES, AND AS A MINOR COMPONENT, A THERMOSETTING PHENOLIC RESIN COMPOSITION IN AN AMOUNT FROM ABOUT ONE PERCENT TO ABOUT THIRTY-FIVE PERCENT BY WEIGHT OF THE TOTAL COMPOSITION WHICH COMPRISES (A) THE SOLID COMMINUTED REACTION PRODUCT OF FORMALDEHYDE WITH PHENOL IN THE RATIO OF BETWEEN ABOUT 0.5 AND ABOUT 0.85 MOL FORMALDEHYDE PER MOL OF PHENOL, (B) HEXAMETHYLENETETRAMINE IN AN AMOUNT BETWEEN ABOUT FOUR PERCENT AND ABOUT TWENTY PERCENT BY WEIGHT OF SAID SOLID REACTION PRODUCT (A), AND (C) AN AROMATIC MONOCARBOXYLIC ACID WHICH IMPARTS A HIGH DEGREE OF FLUIDITY TO THE RESIN IN ITS FUSED STATE IN AN AMOUNT RANGING BETWEEN ABOUT 0.5 AND ABOUT TWENTY PERCENT BY WEIGHT OF SAID SOLID REACTION PRODUCT (A), WHEREIN SAID AROMATIC MONOCARBOXYLIC ACID IS SELECTED FROM THE GROUP CONSISTING OF EHTYL BENZOIC ACID, PROPYL BENZOIC ACID, DIALKYL BENZOIC ACIDS, DIHYDROXY BENZOIC, ACIDS, AND AN AROMATIC MONOCARBOXYLIC ACID WHICH HAS THE FORMULA R-AR-COOH WHEREIN R IS A SUBSTITUTENT SELECTED FROM THE GROUP CONSISTING OF H, CH3, AND OH GROUPS, AND WHEREIN AR IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF PHENYL, PHENYL-ALKYL, PHENYL-ALKENYL CONTAINING LESS THAN SIX CARBON ATOMS IN THE ALKENYL GROUPS, AND NAPHTHYL,
Claim 2
Dependent Claim 205 words
A MOLDABLE COMPOSITION COMPRISING AS A MAJOR COMPONENT SOLID DISCRETE INERT FILLER PARTICLES, AND AS A MINOR COMPONENT, A THERMOSETTING PHENOLIC RESIN COMPOSITION IN AN AMOUNT FROM ABOUT ONE PERCENT TO ABOUT THIRTY-FIVE PERCENT BY WEIGHT OF THE TOTAL COMPOSITION WHICH COMPRISES (A) THE SOLID COMMINUTED REACTION PRODUCT OF FORMALDEHYDE WITH PHENOL IN THE RATIO OF BETWEEN ABOUT 0.5 AND ABOUT 0.85 MOL FORMALDEHYDE PER MOL OF PHENOL, (B) HEXAMETHYLENETETRAMINE IN AN AMOUNT BETWEEN ABOUT FOUR PERCENT AND ABOUT TWENTY PERCENT BY WEIGHT OF SAID SOLID REACTION PRODUCT (A), AND (C) AN AROMATIC MONOCARBOXYLIC ACID WHICH IMPARTS A HIGH DEGREE OF FLUIDITY TO THE RESIN IN ITS FUSED STATE IN AN AMOUNT RANGING BETWEEN ABOUT 0.5 AND ABOUT TWENTY PERCENT BY WEIGHT OF SAID SOLID REACTION PRODUCT (A), WHEREIN SAID AROMATIC MONOCARBOXYLIC ACID IS SELECTED FROM THE GROUP CONSISTING OF EHTYL BENZOIC ACID, PROPYL BENZOIC ACID, DIALKYL BENZOIC ACIDS, DIHYDROXY BENZOIC, ACIDS, AND AN AROMATIC MONOCARBOXYLIC ACID WHICH HAS THE FORMULA R-AR-COOH WHEREIN R IS A SUBSTITUTENT SELECTED FROM THE GROUP CONSISTING OF H, CH3, AND OH GROUPS, AND WHEREIN AR IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF PHENYL, PHENYL-ALKYL, PHENYL-ALKENYL CONTAINING LESS THAN SIX CARBON ATOMS IN THE ALKENYL GROUPS, AND NAPHTHYL,

References Cited (Backward Citations)

US1020594A Cited
US1102634A Cited
GB160258A Cited
US1989802A Cited
US2124532A Cited
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US2608546A Cited
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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) 1965-02-05 1965-08-07 1966-02-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-02-05 1969-08-07 1970-02-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-02-05 1973-08-07 1974-02-06 $7700.00 Window Closed / Lapsed

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