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US3674901A Expired / Lapsed US ⏱️ 0.0 years remaining

Surgical sutures

Assignee: National Patent Development Corp
•
Filing: 1970-04-27
•
Granted: 1972-07-04
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Expires: 1990-04-27
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Abstract

Abstract A process for preparing hydrophilic cross-linked polymers and products prepared thereby, said process comprising admixing in a solvent-free system in the presence of a free radical, vinyl polymerization catalyst and reacting a major amount of a watersoluble polymerizable monoester of an olefinic acid having at least one substituted functional group with a minor amount of a polymerizable diester of one of said olefinic acids having at least two esterifiable hydroxyl groups. The novel products include a solid friable foam which can be disintegrated to powder. Shaped bodies can be prepared in the from of articles which can be cast with additives such as fragrances, medicinals, flavors, chemicals and the like, which are gradually released from the article when it is wetted in water or alcohol. Liquid casting syrups adapted to be polymerized in situ with or without additives can be formed. The casting syrups can be prepared in water to yield a polymer soluble in alcohol which is suitable for formation of hydrophilic coatings as by spray, dip, casting and the like. Surgical suture threads can be coated with the polymers.

Inventors

  • 👤 Thomas H Shepherd
  • 👤 Francis E Gould

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 11:17
CPC Classifications
C; C09; C09D; C09D4/00; A; A01; A01N; A01N25/00; A01N25/08; A01N25/10; A23; A23L; A23L27/00; A23L27/70; A23L27/74; A61; A61L; A61L17/00; A61L17/14; A61L17/145; C09D133/00; C09D133/04; C09D133/14; G; G02; G02B; G02B1/00; G02B1/04; G02B1/041; G02B1/043

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 15 words
A surgical suture according to claim 1 wherein the polymer is a hydroxyethyl methacrylate polymer.

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) 1975-07-04 1976-01-03 1976-07-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-07-04 1980-01-03 1980-07-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-07-04 1984-01-03 1984-07-04 $7700.00 Window Closed / Lapsed

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