David F Vincent

US Patent:

40753891, Feb 21, 1978

Filed:

Feb 28, 1972

Appl. No.:

5/230088

Inventors:

Anthony E. Vassiliades - Deerfield IL
David N. Vincent - Glenview IL

Assignee:

Champion International Corporation - Stamford CT

International Classification:

B01J 1302
C09D 500
B44D 102

US Classification:

428306

Abstract:

Opaque release sheet comprising a base having a coating comprising a primary release agent in the form of air-containing microcapsular opacifiers which may be used in combination with a minor amount of a secondary release agent, such as silicone-poly-glycol copolymer, a methoxysilane, polyethylene, a metal complex or the like, provide opaque, lightweight, dimensionally stable release sheets.

US Patent:

42161126, Aug 5, 1980

Filed:

Sep 21, 1977

Appl. No.:

5/835165

Inventors:

David N. Vincent - Glenview IL
Cheng H. Chang - Naperville IL

Assignee:

Champion International Corporation - Stamford CT

International Classification:

B01J 1302

US Classification:

252316

Abstract:

Pressure-sensitive microcapsules containing a solvent composition for use in carbonless copy systems for use in the absence of a halogenated solvent consisting essentially of a combination of a mono-alkyl naphthalene, wherein said alkyl group contains from 1 to 3 carbon atoms per molecule and a di-alkyl naphthalene, wherein each of said alkyl groups in said di-alkyl naphthalene contains from 2 to 4 carbon atoms per molecule, said mono-alkyl naphthalene being present in an amount between about 25 and about 40 percent by weight of the alkylated naphthalenes present in the solvent, and an isocyanate cross-linking agent.

US Patent:

40714691, Jan 31, 1978

Filed:

Aug 26, 1974

Appl. No.:

5/500903

Inventors:

David N. Vincent - Glenview IL
Cheng Hsiung Chang - Naperville IL

Assignee:

Champion International Corporation - Stamford CT

International Classification:

B01F 100

US Classification:

252364

Abstract:

A solvent composition for use in carbonless copy systems consisting essentially of a combination of a mono-alkyl naphthalene, wherein said alkyl group contains from 1 to 3 carbon atoms per molecule and a di-alkyl naphthalene, wherein each of said alkyl groups in said di-alkyl naphthalene contains from 2 to 4 carbon atoms per molecule. The solvent is used in the production of microcapsules wherein an isocyanate cross-linking agent is dissolved in the solvent.

US Patent:

41154746, Sep 19, 1978

Filed:

May 21, 1974

Appl. No.:

5/471885

Inventors:

Anthony E. Vassiliades - Deerfield IL
David N. Vincent - Glenview IL
Shrenik Shroff - Bombay, IN

Assignee:

Champion International Corporation - Stamford CT

International Classification:

C08F26104
C08F26102

US Classification:

260855

Abstract:

Discrete, substantially spherical microcapsules having a solid polymeric shell and a solid, non-tacky polymeric core, which is grafted to the polymeric shell, are provided. Such microcapsules may be coated onto cellulosic substrates or incorporated into such substrates and subsequently fused to provide cellulosic substrates having a polymeric film bonded thereto and increased strength, respectively. The grafting of the normally nonadherent core material to the shell of the microcapsules provides a means of forming a bond between a normally nonadherent polymer and a cellulosic material. The microcapsules may be effectively employed as load-bearing agents and opacifying agents.

US Patent:

41827880, Jan 8, 1980

Filed:

Nov 11, 1977

Appl. No.:

5/850536

Inventors:

Anthony E. Vassiliades - Deerfield IL
David N. Vincent - Glenview IL

Assignee:

Champion International Corporation - Stamford CT

International Classification:

A61F 1302

US Classification:

428 40

Abstract:

Opaque release sheet bearing a coating on one side thereof comprising a primary release agent in the form of air-containing microcapsular opacifiers in combination with a minor amount of a secondary release agent, such as a silicone polyglycol copolymer, a methoxysilane, polyethylene, a metal complex or the like, and the opposite side coated with a tacky, pressure-sensitive adhesive. A laminate comprising a substrate carrying a layer of said adhesive adjacent a layer comprising the aforesaid release composition.

US Patent:

40875814, May 2, 1978

Filed:

Aug 24, 1976

Appl. No.:

5/717449

Inventors:

David N. Vincent - Glenview IL
Ronald Golden - Mt. Prospect IL

Assignee:

Champion International Corporation - Stamford CT

International Classification:

B32B 516
B32B 100

US Classification:

428327

Abstract:

Microspheric opacifying agents are provided by admixing an aqueous, partially condensed, aldehyde condensation product with an oily material containing an emulsifying agent thereby forming a water-in-oil emulsion, admixing an amphiphilic acid catalyst with the emulsion and polymerizing the condensation product to form discrete, substantially spherical, opaque, solid particles. Additionally, the solid particles may be separated from the oily continuous phase and admixed with water for the further removal of oil material, and thereby causing the formation of spherical agglomerates or "super particles" having a substantially greater opacity than the aforesaid discrete particles. The super particles are hollow, substantially spherical particles having substantially spherical, discontinuous walls composed of agglomerated substantially spherical particles.

US Patent:

41383567, Feb 6, 1979

Filed:

Feb 19, 1976

Appl. No.:

5/659249

Inventors:

David N. Vincent - Glenview IL
Ronald Golden - Mt. Prospect IL

Assignee:

Champion International Corporation - Stamford CT

International Classification:

C09K 328
C08K 550
C08K 910

US Classification:

252182

Abstract:

Microcapsules having an average diameter below 5 microns and containing a flame retardant material are incorporated into polymeric materials, such as polyurethane foams without affecting the structural integrity of the cell walls of the foam. The capsules are chemically bonded to the foam, as well as physically incorporated therein by employing polyhydroxy polymer-containing capsule wall materials which react with the isocyanate used in the polyurethane.

US Patent:

43081657, Dec 29, 1981

Filed:

Jul 30, 1974

Appl. No.:

5/493064

Inventors:

Anthony E. Vassiliades - Deerfield IL
David N. Vincent - Glenview IL
Mabrin P. Powell - Chicago IL

Assignee:

Champion International Corporation - Stamford CT

International Classification:

B01J 1302

US Classification:

252316

Abstract:

Pressure-rupturable, oil-containing microcapsules are produced by admixing a water-immiscible, oily material containing an oil-soluble, cross-linking agent, which is either a polyfunctional isocyanate or an orthoester of a group IV element with an aqueous solution of an emulsifying agent comprising starch having ether-linked aralkyl groups, to cross-link the emulsifier and form a capsule wall at the oil/water interface of the resulting oil-in-water emulsion around the oil droplets. The emulsifying agent is the sole co-reactant for the oil-soluble cross-linking agent.