Don H Rotenberg

US Patent:

41209923, Oct 17, 1978

Filed:

Jun 23, 1977

Appl. No.:

5/809497

Inventors:

Bernard L. Laurin - Ludlow MA
Don H. Rotenberg - Westboro MA
Harry D. Crandon - Woodstock CT

Assignee:

American Optical Corporation - Southbridge MA

International Classification:

B05D 302
B05D 306
B05D 310
G02B 110

US Classification:

427164

Abstract:

An abrasion-resistant organic optical element comprising a transparent base of a synthetic organic material having an adhering coating of an abrasion-resistant material comprising a polysilicic acid ester of an alcohol containing from 1 to 12 carbon atoms and a partially hydrolyzed vinyl polymer to provide polyvinyl alcohol, the coating being cross-linked with formaldehyde or zirconyl nitrate or mixtures thereof. The abrasion-resistant organic optical elements can comprise sheet material or a lens.

US Patent:

51578808, Oct 27, 1992

Filed:

Jun 28, 1991

Appl. No.:

7/724503

Inventors:

Don H. Rotenberg - Tulsa OK
Milton F. Whitmarsh - Tulsa OK

Assignee:

Coburn Optical Industries - Muskogee OK

International Classification:

B24D 1700

US Classification:

51358

Abstract:

A lap used for the grinding, fining and polishing of glass and plastic lenses is constructed of a one-piece injection-molded reinforced polymer body. The front surface of the lap is curved and adapted to receive an abrasive pad. The rear of the lap has a skeletal rib structure of projecting interconnected ribs. Polymers suitable for forming the lap include various crystalline polymers and copolymers having adequate chemical resistance, strength, rigidity and thermal resistance.

US Patent:

41734904, Nov 6, 1979

Filed:

Apr 18, 1978

Appl. No.:

5/897317

Inventors:

Don H. Rotenberg - Westboro MA
Patricia M. Cuffe - Dudley MA
Bernard L. Laurin - Ludlow MA
Peter R. Ramirez - Southbridge MA

Assignee:

American Optical Corporation - Southbridge MA

International Classification:

C09K 300

US Classification:

10628714

Abstract:

A coating composition which results from hydrolyzing 40 to 70 weight per cent tetraethyl orthosilicate and 60 to 20 weight per cent of certain silane is useful for providing abrasion resisting coatings for plastics after curing. Optionally, up to 20 weight percent of a silane having a reactive polar site or, in the alternative, a small percentage of a surfactant may be used to provide a dyeable coated article.

US Patent:

44788738, Oct 23, 1984

Filed:

May 23, 1983

Appl. No.:

6/497264

Inventors:

Jon D. Masso - Whitinsville MA
William D. Brennan - Woodstock CT
Don H. Rotenberg - Westboro MA

Assignee:

American Optical Corporation - Southbridge MA

International Classification:

B05D 306

US Classification:

427 40

Abstract:

Novel anti-static and/or anti-reflective optical elements are produced by coating at least one surface of an organic polymeric plastic substrate with a protective organo-silica coating composition and then subjecting the coated plastic substrate to a glow discharge treatment.

US Patent:

42738091, Jun 16, 1981

Filed:

Oct 25, 1979

Appl. No.:

6/088318

Inventors:

Norman U. LaLiberte - Woodstock CT
Don H. Rotenberg - Westboro MA

Assignee:

American Optical Corporation - Southbridge MA

International Classification:

B05D 702
B05D 506

US Classification:

427155

Abstract:

Cast resin lenses which are removed from casting molds early in a cure cycle are coated for protection against exposure to oxygen to provide increased post cure surface polymerization and abrasion resistance.

US Patent:

41860268, Jan 29, 1980

Filed:

Oct 30, 1978

Appl. No.:

5/956008

Inventors:

Don H. Rotenberg - Westboro MA
Patricia M. Cuffe - Dudley MA
Bernard L. Laurin - Ludlow MA

Assignee:

American Optical Corporation - Southbridge MA

International Classification:

C09K 300

US Classification:

10628714

Abstract:

A coating composition prepared by simultaneously hydrolyzing 20 to 50 wt. % tetraethylorthosilicate, 37 to 60 wt. % of certain silanes and 15 to 35 wt. % formalin has good abrasion resistance and resistance to crazing on substrates having a high affinity for water as well as those with a low affinity for water.

US Patent:

40498689, Sep 20, 1977

Filed:

Dec 29, 1975

Appl. No.:

5/644710

Inventors:

Bernard L. Laurin - Ludlow MA
Don H. Rotenberg - Westboro MA
Harry D. Crandon - Woodstock CT

Assignee:

American Optical Corporation - Southbridge MA

International Classification:

G02B 110
G02B 104
B32B 2708
B32B 2308

US Classification:

428412

Abstract:

An abrasion-resistant organic optical element comprising a transparent base of a synthetic organic material having an adhering coating of an abrasion-resistant material comprising a polysilicic acid ester of an alcohol containing from 1 to 12 carbon atoms and a partially hydrolyzed vinyl polymer to provide polyvinyl alcohol; the coating being cross-linked with formaldehyde or zirconyl nitrate or mixtures thereof. The abrasion-resistant organic optical elements can comprise sheet material or a lens.

US Patent:

42292280, Oct 21, 1980

Filed:

Oct 4, 1978

Appl. No.:

5/948595

Inventors:

Don H. Rotenberg - Westboro MA
Patricia M. Cuffe - Dudley MA
Bernard L. Laurin - Ludlow MA
Peter R. Ramirez - Southbridge MA

Assignee:

American Optical Corporation - Southbridge MA

International Classification:

C09K 300

US Classification:

10628714

Abstract:

A coating composition which results from hydrolyzing 35 to 70 weight percent tetraethyl orthosilicate and 60 to 20 weight percent of certain silane is useful for providing abrasion resisting coatings for plastics after curing. Optionally, up to 20 weight percent of a silane having a reactive polar site or, in the alternative, a small percentage of a surfactant may be used to provide a dyeable coated article.