Leonard J Adzima

US Patent:

6365090, Apr 2, 2002

Filed:

Jul 16, 1999

Appl. No.:

09/356354

Inventors:

Michael A. Strait - Johnstown OH
Homer G. Hill - Newark OH
Robert A. Schweizer - Granville OH
Stephen Seng - Howard OH
Leonard J. Adzima - Pickerington OH

Assignee:

Owens Corning Fiberglas Technology, Inc. - Summit IL

International Classification:

C03B 3714

US Classification:

264494, 264143

Abstract:

A process and apparatus for making densified glass fiber pellets substantially encapsulated in a polymeric shell from chopped segments of multi-filament glass strand is described. The densified pellets may be advantageously produced by hydrating chopped glass strands and then pelletizing them by tumbling in a rotary drum, densifying the resulting pellets by tumbling in a rotating zig-zag or undulating tube, drying the pellets and encapsulating them in a polymeric composition. The resulting pellets exhibit enhanced degradation resistance during bulk storage and handling.

US Patent:

6365272, Apr 2, 2002

Filed:

Dec 29, 1999

Appl. No.:

09/474442

Inventors:

Nadia Masson - Olne, BE
Jean-Marc Henrion - Theux, BE
James Laurence Thomason - Newark OH
Leonard Joseph Adzima - Pickerington OH
Terry Linn Cheney - Coshocton OH
Willy Piret - Xhendelesse, BE
Marc Cossement - Chaineux, BE

Assignee:

Owens Corning Fiberglas Technology, Inc. - Summit IL

International Classification:

D02G 300

US Classification:

428378, 428375, 428392, 428394, 428361, 428359, 523222, 524504

Abstract:

A two-part sizing system for making colorless, densified fiber pellets of a reinforcing fiber material. The densified product may be advantageously produced by first applying a precursor size composition to reinforcing fiber strands, chopping the reinforcing fiber strands into chopped strand segments, applying a binder size, and densifying the chopped strand segments to form densified fiber pellets. The binder size is formulated using a copolymer of maleic anhydride which generates a product free from discoloration. In the process of making the pellets, the sized chopped strands are densified by tumbling in a rotating chamber for a period of time sufficient to increase their density but insufficient to degrade the fibers to a point where composite articles formed from such pellets have lower tensile or impact strengths than comparable composite articles formed from unpelletized strand segments.

US Patent:

6399198, Jun 4, 2002

Filed:

Dec 23, 1998

Appl. No.:

09/220221

Inventors:

David G. Miller - Pickerington OH
Leonard J. Adzima - Pickerington OH
David J. Wamer - Somerset OH

Assignee:

Owens Corning Fiberglas Technology, Inc. - Summit IL

International Classification:

D02G 300

US Classification:

428392, 428375, 428378, 428391, 525106, 525398, 525461, 525453, 427174

Abstract:

A nonaqueous sizing for glass fibers useful for reinforcement of polymers. The sizing composition comprises one or more film formers miscible with the polymer to be reinforced, one or more coupling agents and one or more powders. The sizing composition of the invention provides a glass fiber which has improved processability and notched izod without any loss in dispersability characteristics of the glass pellets.

US Patent:

6551707, Apr 22, 2003

Filed:

Sep 30, 2000

Appl. No.:

09/676639

Inventors:

Leonard Joseph Adzima - Pickerington OH
Robert Arthur Schweizer - Granville OH
Arthur Eloy Lopez - Amarillo TX

Assignee:

Owens Corning Fiberglas Technology, Inc. - Summit IL

International Classification:

B32B 2702

US Classification:

428394, 428391, 428392

Abstract:

The present invention relates to pellets comprising fibers impregnated with resin. The pellets incorporate a mixed lubricant sizing composition comprising at least one cationic lubricant and at least one non-ionic lubricant. These pellets may be consolidated to form fiber reinforced resin composites.

US Patent:

6659756, Dec 9, 2003

Filed:

Nov 13, 2001

Appl. No.:

10/010585

Inventors:

Michael A. Strait - Johnstown OH
Homer G. Hill - Newark OH
Robert A. Schweizer - Howard OH
Stephen Seng - Howard OH
Leonard J. Adzima - Pickerington OH

Assignee:

Owens Corning Fiberglas Technology, Inc. - Summit IL

International Classification:

B29C 6702

US Classification:

425222, 65483

Abstract:

A process and apparatus for making densified glass fiber pellets substantially encapsulated in a polymeric shell from chopped segments of multi-filament glass strand is described. The densified pellets may be advantageously produced by hydrating chopped glass strands and then pelletizing them by tumbling in a rotary drum, densifying the resulting pellets by tumbling in a rotating zig-zag or undulating tube, drying the pellets and encapsulating them in a polymeric composition. The resulting pellets exhibit enhanced degradation resistance during bulk storage and handling.

US Patent:

6715191, Apr 6, 2004

Filed:

Jun 28, 2001

Appl. No.:

09/895922

Inventors:

Leonard J. Adzima - Pickerington OH
Timothy A. Miller - Newark OH

Assignee:

Owens Corning Fiberglass Technology, Inc. - Summit IL

International Classification:

D02G 116

US Classification:

28247, 28271, 28289

Abstract:

A method of co-texturizing glass fibers and thermoplastic fibers comprises passing a glass fiber strand through a texturizing gun, simultaneously passing a thermoplastic fiber strand through the texturizing gun with the glass fiber strand and injecting pressurized air into the texturizing gun concurrently with the glass fiber strand and thermoplastic fiber strands. This method produces a co-texturized fiber material comprising between 20-85% by weight glass fiber and 15-80% by weight thermoplastic fiber having an overall density of from about 20 grams/liter to about 200 grams/liter, and preferably from about 20 grams/liter to less than about 30 grams/liter.

US Patent:

6767625, Jul 27, 2004

Filed:

Dec 30, 2002

Appl. No.:

10/331327

Inventors:

Leonard J. Adzima - Pickerington OH

Assignee:

Owens Corning Fiberglas Technology, Inc. - Summit IL

International Classification:

B32B 516

US Classification:

428323, 4282941, 4283001, 4282994, 4272082, 427343, 427358, 4273722, 427375, 427386

Abstract:

A method for making moldable material comprises the initial step of providing a composite material comprised in part of an epoxy. A high performance strand is then distributed in the composite material to form a moldable material. Lastly, the moldable material is heated sufficiently to cause the composite material and the high performance strand to stick at least slightly together without melting the epoxy.

US Patent:

7465764, Dec 16, 2008

Filed:

Jun 18, 2004

Appl. No.:

10/872103

Inventors:

Leonard J. Adzima - Pickerington OH, US
William G. Hager - Westerville OH, US
Kevin Guigley - Granville OH, US
David D. Hokens - Pataskala OH, US
Jeff L. Antle - Canyon TX, US
John R. Green - Alexandria OH, US
Teresa Wagner - Granville OH, US

Assignee:

OCV Intellectual Captial, LLC - DE

International Classification:

C08G 67/02

US Classification:

524612, 10628722

Abstract:

A sizing composition containing an epoxy resin emulsion, one or more coupling agents, a cationic lubricant, and an acid. The epoxy resin emulsion includes a low molecular weight epoxy and one or more surfactants. The epoxy resin has an epoxy equivalent weight of from 175-225, preferably from 175-190. Optionally, the sizing composition may also contain a non-ionic lubricant, a polyurethane film former, and/or an antistatic agent. The sizing composition may be used to size glass fibers used in filament winding applications to form reinforced composite articles with improved mechanical properties, wet tensile properties, improved resistance to cracking, and improved processing characteristics.