Gerald John Gruber

US Patent:

RE307726, Oct 13, 1981

Filed:

Jun 2, 1980

Appl. No.:

6/155711

Inventors:

Charles B. Friedlander - Glenshaw PA
Gerald W. Gruber - Wexford PA
Rostyslaw Dowbenko - Gibsonia PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

C08G 1838

US Classification:

525421

Abstract:

Radiation curable compounds are disclosed comprising an amide moiety, a urethane moiety and an ethylenically unsaturated functional group, typically an acrylate functional group. The compounds comprise the reaction products of an amide-containing compound having at least one hydroxy functional group, a polyisocyanate and a polyfunctional compound having a hydroxy functional group reactive with an isocyanato group of the polyisocyanate, which polyfunctional compound provides an ethylenic functional group in the reaction product. Coating compositions containing these radiation curable reaction products cure at relatively high rates to form films having high abrasion resistance and improved tensile strength and elongation properties as compared to conventional urethane acrylate coating compositions.

US Patent:

42847761, Aug 18, 1981

Filed:

Dec 9, 1977

Appl. No.:

5/858973

Inventors:

Gerald W. Gruber - Sewickley PA
Charles B. Friedlander - Glenshaw PA
William H. McDonald - Arnold PA
Rostyslaw Dowbenko - Gibsonia PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

C07D29510
C07D21108

US Classification:

544400

Abstract:

Radiation polymerizable acrylyloxy-containing reaction products are provided from Michael addition reaction of an amide acrylate material with a primary or secondary amine. The resulting amine adducts of the amide acrylate compounds possess high cure rates in air.

US Patent:

40176525, Apr 12, 1977

Filed:

Oct 23, 1974

Appl. No.:

5/517572

Inventors:

Gerald W. Gruber - Sewickley PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

B05D 306

US Classification:

427 54

Abstract:

The oxygen inhibition of the photopolymerization of acrylic resins is reduced by employing a photocatalyst system containing an aromatic ketone and/or aromatic aldehyde photosensitizer having a triplet energy in the range of from about 54 kilocalories per mole to about 72 kilocalories per mole and which promotes polymerization through bimolecular photochemical reactions of the energy donor type and an aromatic ketone photoinitiator which generates a radical pair by way of unimolecular homolysis resulting from photoexcitation. An exemplary photocatalyst system is benzophenone and isobutyl benzoin ether.

US Patent:

41537769, May 8, 1979

Filed:

Mar 28, 1978

Appl. No.:

5/890895

Inventors:

Charles B. Friedlander - Glenshaw PA
Gerald W. Gruber - Sewickley PA
Rostyslaw Dowbenko - Gibsonia PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

C08G 1804

US Classification:

528 49

Abstract:

Radiation curable compounds are disclosed comprising an amide moiety, a urethane moiety and an ethylenically unsaturated functional group, typically an acrylate functional group. The compounds comprise the reaction products of an amide-containing compound having at least one hydroxy functional group, a polyisocyanate and a polyfunctional compound having a hydroxy functional group reactive with an isocyanato group of the polyisocyanate, which polyfunctional compound provides an ethylenic functional group in the reaction product. Coating compositions containing these radiation curable reaction products cure at relatively high rates to form films having high abrasion resistance and improved tensile strength and elongation properties as compared to conventional urethane acrylate coating compositions.

US Patent:

40242978, May 17, 1977

Filed:

Feb 2, 1976

Appl. No.:

5/654500

Inventors:

Gerald W. Gruber - Sewickley PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

B05D 306

US Classification:

427 54

Abstract:

An aromatic ketone photopolymerization activator is present in an actinic light curable composition containing organic polymerizable material containing a plurality of sites of ethylenic unsaturation. The composition is polymerized by exposing it to actinic light.

US Patent:

42279798, Oct 14, 1980

Filed:

Oct 5, 1977

Appl. No.:

5/839686

Inventors:

Byron M. Humke - Glenshaw PA
Gerald W. Gruber - Sewickley PA
Rostyslaw Dowbenko - Gibsonia PA
Charles B. Friedlander - Glenshaw PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

C08F 250
C08F 2036
C08L 3314

US Classification:

20415916

Abstract:

Radiation-curable coating compositions are disclosed which contain one or more amide acrylate compounds of the general formula: ##STR1## wherein X, Y and Z may each independently be H, alkyl, aryl, acrylyloxyalkyl, acrylyloxy aliphatic ester or acrylyloxy aliphatic ether, provided that X, Y and Z together have two, three or four acrylyloxy groups. The compositions are highly radiation-sensitive and very fast curing and form mar-resistant protective and decorative film coatings which are particularly useful as UV-cured overprint varnishes.

US Patent:

40242960, May 17, 1977

Filed:

Feb 2, 1976

Appl. No.:

5/654499

Inventors:

Gerald W. Gruber - Sewickley PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

B05D 306

US Classification:

427 53

Abstract:

A photocatalyst system comprising an aromatic ketone photopolymerization activator having a triplet energy in the range of from about 54 kilocalories per mole to about 72 kilocalories per mole and phenanthrenequinone is present in an actinic light polymerizable coating composition containing organic polymerizable material containing a plurality of sites of ethylenic unsaturation and ultraviolet light absorbing hiding pigment. Coatings of the coating composition are polymerized by exposing them to actinic light of a wavelength where absorption by the pigment is substantial and to actinic light of a wavelength where absorption by the pigment is insubstantial.

US Patent:

40546837, Oct 18, 1977

Filed:

Feb 2, 1976

Appl. No.:

5/654507

Inventors:

Gerald W. Gruber - Sewickley PA

Assignee:

PPG Industries, Inc. - Pittsburgh PA

International Classification:

B05D 306

US Classification:

427 53

Abstract:

Coatings of actinic light polymerizable coating compositions containing organic polymerizable material containing a plurality of sites of ethylenic unsaturation, phenanthrenequinone and ultraviolet light absorbing pigment are polymerized by exposing them to actinic light of a wavelength where absorption by the pigment is insubstantial.