Ronald E Harris

US Patent:

6627299, Sep 30, 2003

Filed:

May 27, 1999

Appl. No.:

09/321877

Inventors:

Ke Feng - Lilburn GA
Alan R. Burgess - Roswell GA
Ronald M. Harris - Alpharetta GA

Assignee:

PolyCne Corporation - Avon Lake OH

International Classification:

B32B 700

US Classification:

428207, 430139, 523137

Abstract:

The invention provides a composition and method for obtaining both light and dark laser marks of varying shades and intensities on a single plastic article by selectively controlling laser parameters. The invention further provides compositions and methods for obtaining pre-selected one-color and multi-colored designs on plastic articles, by selectively controlling material formulations and laser parameter settings.

US Patent:

60179724, Jan 25, 2000

Filed:

May 28, 1999

Appl. No.:

9/322589

Inventors:

Ronald M. Harris - Alpharetta GA
Ke Feng - Lilburn GA
Alan R. Burgess - Roswell GA

Assignee:

M.A. HannaColor - Suwanee GA

International Classification:

C08K 334

US Classification:

522 2

Abstract:

The invention provides a composition and method for obtaining both light and dark laser marks of varying shades and intensities on a single plastic article by selectively controlling laser parameters. The invention further provides compositions and methods for obtaining pre-selected one-color and multi-colored designs on plastic articles, by selectively controlling material formulations and laser parameter settings.

US Patent:

59775149, Nov 2, 1999

Filed:

Jun 13, 1997

Appl. No.:

8/874401

Inventors:

Ke Feng - Lilburn GA
Alan R. Burgess - Roswell GA
Ronald M. Harris - Alpharetta GA

Assignee:

M.A. HannaColor - Suwanee GA

International Classification:

B23K 2600

US Classification:

21912169

Abstract:

A method for obtaining both light and dark laser marks on a colored plastic article by using a composition with (i) a thermoplastic resin that foams when heated, (ii) about 0. 4% to 0. 7% by weight of a mica based laser energy absorbing additive and (iii) a coloring agent with one or more colorants selected from the group of pigments, dyes, and mixtures of pigments and dyes. Using a laser at certain settings results in charring of the resin to produce dark laser marks. At other selected laser settings, the resin foams to produce a light mark on a colored background. By varying the laser energy settings, various degrees of both foaming and charring can be achieved on a single plastic article, having a single resin composition, resulting in a multicolored laser image produced by various shades of light and/or dark marks against the background color.

US Patent:

56865155, Nov 11, 1997

Filed:

Nov 13, 1995

Appl. No.:

8/557685

Inventors:

Tracy L. Phillips - Lawrenceville GA
Ronald M. Harris - Alpharetta GA
Alan R. Burgess - Roswell GA
Judy A. Johnston - Oakwood GA

Assignee:

The M.A. Hanna Company - Cleveland OH

International Classification:

C08K 509
C08J 320

US Classification:

524275

Abstract:

A process for manufacture of articles comprised of polyethylene terephthalate wherein the PET is colored with a composition comprised of a wax dispersant, ethylene copolymer, and a colorant. In a preferred embodiment, the wax dispersant is a maleated polyethylene wax. In an alternative embodiment, the wax dispersant is a low molecular weight polyethylene wax and the composition further includes linear low density polyethylene. A preferred ethylene copolymer is ethylene-(meth)acrylic acid.

US Patent:

60229055, Feb 8, 2000

Filed:

May 28, 1999

Appl. No.:

9/322000

Inventors:

Ronald M. Harris - Alpharetta GA
Ke Feng - Lilburn GA
Alan R. Burgess - Roswell GA

Assignee:

M.A. HannaColor - Suwanee GA

International Classification:

C08K 306

US Classification:

522 2

Abstract:

The invention provides a composition and method for obtaining both light and dark laser marks of varying shades and intensities on a single plastic article by selectively controlling laser parameters. The invention further provides compositions and methods for obtaining pre-selected one-color and multi-colored designs on plastic articles, by selectively controlling material formulations and laser parameter settings.