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US4129490A Expired / Lapsed US ⏱️ 0.0 years remaining

Polymeric products

Assignee: PPG Industries Inc
•
Filing: 1977-12-07
•
Granted: 1978-12-12
•
Expires: 1997-12-07
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Abstract

Abstract Polymeric products comprising the acidified reaction product of an organic polyepoxide and a polyamine containing at least two tertiary amine groups are disclosed. The polyamine and the organic polyepoxide are reacted with one another under conditions to form an internally ionized, quaternary ammonium salt group-containing polymer which has a high molecular weight, but relatively low equivalent weight. The polyamine is formed by reacting an organic polyisocyanate or organic polycarboxylic acid with an active hydrogen-containing tertiary amine. The reaction product is acidified to form the quaternary ammonium salt groups. Preparing the polyamine in this manner gives one wide latitude in determining the final structure of the polyamine. In effect, one can "tailor make" the polyamine by appropriate selection of reactants and exert a great measure of control over the properties of the final polymeric product. The preferred polymeric products are non-gelled, water-dispersible and electrodepositable on the cathode.

Inventors

  • 👤 Karl F. Schimmel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 23:29
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08L; C08L63/00; Y; Y10; Y10S; Y10S524/00; Y10S524/901

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 158 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising passing an electric current between said cathode and an anode through an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of a non-gelled, internally ionized, quaternary ammonium salt group-containing polymer comprising the reaction product of: (A) an organic polyepoxide, (B) a polyamine containing at least two tertiary amine groups, formed from reacting: (1) a member selected from the class consisting of an organic polyisocyanate, an organic polycarboxylic acid, ester or anhydride, and mixtures thereof, (2) an active hydrogen-containing tertiary amine in which the active hydrogen is selected from the class consisting of hydroxyl, mercapto, primary and secondary amino, (1) and (2) reacted with one another to form a polyamine which is stable in water; said reaction product being acidified to provide a quaternary ammonium salt group-containing polymer in which the salt groups are located along the polymer backbone.
Claim 2
Independent Claim 158 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising passing an electric current between said cathode and an anode through an aqueous electrodepositable composition wherein the electrodepositable composition comprises an aqueous dispersion of a non-gelled, internally ionized, quaternary ammonium salt group-containing polymer comprising the reaction product of: (A) an organic polyepoxide, (B) a polyamine containing at least two tertiary amine groups, formed from reacting: (1) a member selected from the class consisting of an organic polyisocyanate, an organic polycarboxylic acid, ester or anhydride, and mixtures thereof, (2) an active hydrogen-containing tertiary amine in which the active hydrogen is selected from the class consisting of hydroxyl, mercapto, primary and secondary amino, (1) and (2) reacted with one another to form a polyamine which is stable in water; said reaction product being acidified to provide a quaternary ammonium salt group-containing polymer in which the salt groups are located along the polymer backbone.
Claim 3
Dependent Claim 17 words
The method of claim 1 in which the organic polyepoxide is a polyglycidyl ether of a polyphenol.
Claim 4
Dependent Claim 13 words
The method of claim 2 in which the organic polyisocyanate is an NCO-prepolymer.
Claim 5
Dependent Claim 17 words
The method of claim 1 in which the active hydrogen-containing tertiary amine is a hydroxyl-containing tertiary amine.

References Cited (Backward Citations)

US3405104A Cited
US3839252A Cited
US3975346A Cited
US3663389A Cited
US3962165A Cited
US3804786A Cited
US3947339A Cited
US4009133A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-12-11 1982-06-12 1982-12-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-12-11 1986-06-12 1986-12-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-12-11 1990-06-12 1990-12-12 $7700.00 Window Closed / Lapsed

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