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US3869303A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of surface modification of polymer materials

Assignee: Individual
•
Filing: 1972-09-22
•
Granted: 1975-03-04
•
Expires: 1992-09-22
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Abstract

Abstract A method of surface modification of polymer materials, according to which said materials are treated with an aqueous solution comprising a mineral acid, a mineral oxidant, and a salt of hydrochloric, hydrobromic, or hydroiodic acid. Water, said mineral acid, mineral oxidant and salt are taken in a weight ratio of 50-1000:0.3-7:0.1-7:1-15 respectively. By carrying out modification of polymer materials in accordance with the present method, the initial strength of the treated materials remains unaffected. Moreover, in the process of treating the materials, the latter acquire desired adhesion properties, whereby strength of cementing of polymer materials with each other, with metals, wood, glass-reinforced plastics and glass is ensured.

Inventors

  • 👤 Vladimir Alexandrovich Orlov
  • 👤 Vera Dmitrievna Zaitseva
  • 👤 Viktor Alexeevich Sinitsyn
  • 👤 Ekaterina Efimovna Rostovtseva

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 05:40
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; H; H05; H05K; H05K3/00; H05K3/38; H05K3/381

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 101 words
A METHOD OF SURFACE MODIFICATION OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF ISOPRENE RUBBER, STYRENEBUTADIENE RUBBER, AND NATURAL RUBBER, TO THEREBY IMPROVE SUBSTANTIALLY THE SURFACE ADHESION PROPERTIES THEREOF, COMPRISING TREATING SAID POLYMER WITH AN AQUEOUS SOLUTION COMPRISING A MINERAL ACID, A MINERAL OXIDANT SELECTED FROM THE GROUP CONSISTING OF POTASSIUM BROMATE, POTASSIUM PERMANGANATE, AND SODIUM PERCHLORATE AND A MEMBER OF THE GROUP CONSISTING OF SODIUM, POTASSIUM, AND ZINC SALTS OF HYDROCHLORIC, HYDROIODIC AND HYDROBROMIC ACIDS, THE WATER, SAID MINERAL ACID, SAID MINERAL OXIDANT AND SAID SALT IN SAID AQUEOUS SOLUTION BEING TAKEN IN A WEIGHT RATIO OG 50-1000:0.3-7:1:15, RESPECTIVELY.
Claim 2
Independent Claim 101 words
A METHOD OF SURFACE MODIFICATION OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF ISOPRENE RUBBER, STYRENEBUTADIENE RUBBER, AND NATURAL RUBBER, TO THEREBY IMPROVE SUBSTANTIALLY THE SURFACE ADHESION PROPERTIES THEREOF, COMPRISING TREATING SAID POLYMER WITH AN AQUEOUS SOLUTION COMPRISING A MINERAL ACID, A MINERAL OXIDANT SELECTED FROM THE GROUP CONSISTING OF POTASSIUM BROMATE, POTASSIUM PERMANGANATE, AND SODIUM PERCHLORATE AND A MEMBER OF THE GROUP CONSISTING OF SODIUM, POTASSIUM, AND ZINC SALTS OF HYDROCHLORIC, HYDROIODIC AND HYDROBROMIC ACIDS, THE WATER, SAID MINERAL ACID, SAID MINERAL OXIDANT AND SAID SALT IN SAID AQUEOUS SOLUTION BEING TAKEN IN A WEIGHT RATIO OG 50-1000:0.3-7:1:15, RESPECTIVELY.
Claim 3
Dependent Claim 13 words
A method as defined in claim 1, wherein said polymer is isoprene rubber.
Claim 4
Dependent Claim 13 words
A method as defined in claim 1, wherein said polymer is styrene-butadiene rubber.
Claim 5
Dependent Claim 13 words
A method as defined in claim 1, wherein said polymer is natural rubber.

References Cited (Backward Citations)

US3471313A Cited
US3616294A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-03 1978-09-02 1979-03-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-03 1982-09-02 1983-03-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-03 1986-09-02 1987-03-04 $7700.00 Window Closed / Lapsed

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