The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2002
Filed:
Mar. 23, 2001
Jeffrey R. Jones, Inman, SC (US);
Nathan A. Mehl, Moore, SC (US);
Milliken & Company, Spartanburg, SC (US);
Abstract
Plastic additives which are useful as nucleating agents and which are especially useful for improving the optical properties of polymeric materials are provided. More particularly, this invention relates to certain asymmetric DBS compounds comprising specific pendant groups, such as C -C alkyl, C -C alkoxy, phenyl, naphthyl, or substituted phenyl, or pendant groups combined to cyclic moities, such as cyclopentyl (and thus to form indan with the benzylidene), cyclohexyl (to form tetralin), and methylenedioxy (as the combination of two available sites on the pertinent ring system). Such compounds may be added to or incorporated within polymer compositions which may then be utilized within, as merely examples, food or cosmetic containers and packaging. These inventive asymmetric benzylidene sorbitol acetals are also useful as gelling agents for water and organic solvents, particularly those used in the preparation of antiperspirant gel sticks. Preferably one of the benzylidene moieties is 3,4-disubstituted, with most preferably methyl groups in the 3 and 4 positions.