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:
Aug. 21, 1990
Filed:
Dec. 22, 1988
Ricky L Tabor, Lake Jackson, TX (US);
Gerald M Lancaster, Freeport, TX (US);
Zdravko Jezic, Lake Jackson, TX (US);
Gene P Young, Lake Jackson, TX (US);
John O Biesser, Lake Jackson, TX (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
Succinic acid or succinic anhydride grafts of linear ethylene polymers are blended with other polymers or resins, e.g. polyesters and the like, to form blends having useful adhesive properties. The adhesive properties are useful in various laminates and in bicomponent fibers which comprise a core of a performance fiber, especially a polyester such as PET or PBT and polyamides, and a sheath of the grafted LDPE, HDPE or LDPE. The succinic acid or succinic anhydride groups are provided by grafting, respectively, maleic acid or maleic anhydride onto the LDPE, LLDPE, and HDPE, especially by a process wherein the grafting is done in a twin-screw, co-rotating extruder with the maleic acid or maleic anhydride being injected into a pressured zone of the extruder. The acid containing grafted polymer is dyeable in contradistinction to ungrafted polymer.