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US3849521A Expired / Lapsed US ⏱️ 0.0 years remaining

Oil-and water-repellent composition comprising a polymer containing fluoroalkyl monomer units and an additive copolymer

Assignee: AGC Inc
•
Filing: 1972-09-19
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Granted: 1974-11-19
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Expires: 1992-09-19
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Abstract

Abstract 1. IN AN OIL- AND WATER-REPELLENT COMPOSITION, WHICH COMPRISES: AN OIL- AND WATER-REPELLENT POLYMER CONTAINING UNITS OF A FLUOROALKYL MONOMER AND AN ADDITIVE COPOLYMER CONTAINING 90 TO 99 WEIGHT PERCENT MONOMER UNITS HAVING THE FORMULA: CR1R2=CR3COOR4 WHEREIN R1, R2 AND R3 REPRESENT HYDROGEN ATOMS OR METHYL GROUPS, AND R4 REPRESENTS C1-18 ALKYL GROUPS AND 1-10 WEIGHT PERCENT OF MONOMER UNITS OF THE FORMULA: CH2=CR5CONHCH2OH WHEREIN R5 REPRESENTS HYDROGEN OR METHYL; THE IMPROVEMENT WHICH COMPRISES: AN OIL- AND WATER-REPELLENT POLYMER CONTAINING AT LEAST 25 WEIGHT PERCENT FLUOROALKYL MONOMER UNITS HAVING C3-15 PER FLUOROALKYL GROUP AND CONTAINING 15 TO 0.1 WEIGHT PERCENT ACRYLAMIDE DERIVATIVE MONOMER UNITS SELECTED FROM THE GROUP CONSISTING OF DIACETONEACRYLAMIDE, DIACETONEMETHACRYLAMIDE, A LOWER ALKYLOL DIACETONEACRYLAMIDE AND A LOWER ALKYLOL DIACTONEMETHACRYLAMIDE.

Inventors

  • 👤 H Kojima
  • 👤 K Kirimoto
  • 👤 T Hayashi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 06:39
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C08; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/062; C08L33/066; C08L33/14; C08L33/16; C08L57/00; C08L57/06; C08L57/08

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 34 words
IN AN OIL- AND WATER-REPELLENT COMPOSITION, WHICH COMPRISES: AN OIL- AND WATER-REPELLENT POLYMER CONTAINING UNITS OF A FLUOROALKYL MONOMER AND AN ADDITIVE COPOLYMER CONTAINING 90 TO 99 WEIGHT PERCENT MONOMER UNITS HAVING THE FORMULA:
Claim 2
Dependent Claim 34 words
IN AN OIL- AND WATER-REPELLENT COMPOSITION, WHICH COMPRISES: AN OIL- AND WATER-REPELLENT POLYMER CONTAINING UNITS OF A FLUOROALKYL MONOMER AND AN ADDITIVE COPOLYMER CONTAINING 90 TO 99 WEIGHT PERCENT MONOMER UNITS HAVING THE FORMULA:

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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