Laura M Babcock

US Patent:

6608155, Aug 19, 2003

Filed:

Jan 7, 1998

Appl. No.:

09/003879

Inventors:

Laura M. Babcock - Hockessin DE
Dennis G. Morrell - Hockessin DE

Assignee:

Eastman Chemical Resins, Inc. - Kingsport TN

International Classification:

C08F11208

US Classification:

526237, 526130, 526346, 585 10, 585 11, 585 12, 502226, 502227, 502229, 502231

Abstract:

Supported metal halides and metal halide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed from the solid acid catalyst prior to use. Resins with softening points (Ring and Ball) in the range of about 5Â C. to 170Â C. can be prepared. These catalysts offer advantages over the traditional Friedel-Crafts polymerization catalysts since the acid sites are an integral part of the solid. The solid acid catalysts are relatively nonhazardous, reusable catalysts which eliminate or at least reduce contamination of the resulting resin products with acid residues or by-products.

US Patent:

8114939, Feb 14, 2012

Filed:

May 12, 2008

Appl. No.:

12/599502

Inventors:

Laura M. Babcock - Plymouth MN, US
Joseph D. Schroeder - Minneapolis MN, US

Assignee:

NatureWorks LLC - Minnetonka MN

International Classification:

C08G 63/48

US Classification:

525 69, 525186, 525190, 525410, 525411, 525415, 525450

Abstract:

Metal catalyst residues in resins containing polymerized lactic acid units, such as polylactides, are deactivated by treatment with a polymer or copolymer that contain pendant acid groups and pendant ester groups, with an acid-containing PLA resin, or with a polymer or copolymer having at least one acid groups per 250 atomic mass units and which has pendant lactic acid or poly(lactic acid) groups. The deactivating agent is effective at deactivating the catalyst, and has little effect on the optical clarity of the resin.

US Patent:

8183321, May 22, 2012

Filed:

Oct 18, 2007

Appl. No.:

12/445287

Inventors:

Laura Mae Babcock - Plymouth MN, US
David E. Henton - Jackson WY, US
Fasil A. Tadesse - Burnsville MN, US

Assignee:

NatureWorks LLC - Minnetonka MN

International Classification:

C08L 51/00
C08L 67/04
C08G 63/08

US Classification:

525 64, 525 71

Abstract:

Polylactide resins are blended with core-shell rubber particles to improve impact strength. A good balance of impact strength and transparency is achieved when the rubber particles are distributed within the polymer matrix such that most of them exist as single particles or agglomerates having a diameter of 150 nanometers or more, and the number average size of the particles and agglomerates is not more than 210 nanometers.

US Patent:

62813099, Aug 28, 2001

Filed:

Jan 7, 1998

Appl. No.:

9/003594

Inventors:

Laura M. Babcock - Hockessin DE
Dennis G. Morrell - Hockessin DE
John N. Kostas - Wilmington DE
Andrew Bell - Lakewood OH

Assignee:

Eastman Chemical Company - Kingsport TN

International Classification:

C08F 406
C08F 400
C08F 1014

US Classification:

526201

Abstract:

Fluorinated solid acids and supported fluorinated solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed from the fluorinated solid acid catalyst and/or supported fluorinated solid acid catalyst prior to use. Resins with softening points (Ring and Ball) in the range of about 5. degree. C. to 170. degree. C. can be prepared. These catalysts offer advantages over the traditional Friedel-Crafts polymerization catalysts since the acid sites are an integral part of the solid. The fluorinated solid acid catalysts and supported fluorinated solid acid catalysts are relatively nonhazardous, reusable catalysts which eliminate or at least reduce contamination of the resulting resin products with acid residues or by-products.

US Patent:

61333867, Oct 17, 2000

Filed:

Jan 7, 1998

Appl. No.:

9/003888

Inventors:

Dennis G. Morrell - Hockessin DE
Laura M. Babcock - Hockessin DE

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

C08F 422
C08F 1212

US Classification:

526130

Abstract:

Metal oxide solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer (e. g. , styrene based monomers), C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed from the solid acid catalyst prior to use. Resins with softening points (Ring and Ball) in the range of about 5. degree. C. to 170. degree. C. can be prepared. These catalysts offer advantages over the traditional Friedel-Crafts polymerization catalysts since the acid sites are an integral part of the solid. The solid acid catalysts are relatively nonhazardous, reusable catalysts which eliminate or at least reduce contamination of the resulting resin products with acid residues or by-products.

US Patent:

63101548, Oct 30, 2001

Filed:

Jan 7, 1998

Appl. No.:

9/003596

Inventors:

Laura M. Babcock - Hockessin DE
Dennis G. Morrell - Hockessin DE

Assignee:

Eastman Chemical Company - Kingsport TN

International Classification:

C08F 418
C08F 412

US Classification:

526194

Abstract:

Solid acids are used as catalysts for the polymerization of a feed stream containing at least one of pure monomer, C5 monomers, and C9 monomers to produce hydrocarbon resins. Freely-associated water may be removed from the solid acid catalyst prior to use. Resins with softening points (Ring and Ball) in the range of about 5. degree. C. to 170. degree. C. can be prepared. These catalysts offer advantages over the traditional Friedel-Crafts polymerization catalysts since the acid sites are an integral part of the solid. The solid acid catalysts are relatively nonhazardous, reusable catalysts which eliminate or at least reduce contamination of the resulting resin products with acid residues or by-products.