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:
Jan. 10, 2012
Filed:
Nov. 24, 2008
Robert Harvey Moffett, Landenberg, PA (US);
Robert Harvey Moffett, Landenberg, PA (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A composition and its use as a mold release composition are disclosed. The composition comprises a fluorotelomer, which comprises repeat units derived from a fluoroalkene, and optionally a comonomer, and has an endgroup derived from an alcohol, an alcohol derivative, or a combination thereof, and said fluorotelomer has or comprises a structure depicted as H(CX)BDor a mixture of structures depicted as H(CX)Band H(CX)D, wherein each X is independently H or F, provided at least one X is F, p is a number from about 16 to about 1500, B represents a unit derived from a hydrofluorocarbon, q is a number from 0.02 to 0.4, D represents an endgroup derived from said alcohol, alcohol derivative, or combination thereof, and r is a number 0.2 to 1.0. The composition comprises a silane having the formula R—Si—(Z)wherein Z is OR, Cl, or H, wherein Ris selected from the group consisting of hydrogen, a hydrocarbon radical having 1-34 carbon atoms, and combinations of two or more thereof, Ris selected from the group consisting hydrogen, a hydrocarbon radical having 1-4 carbon atoms, and combinations of two or more thereof, provided that Rand Rboth cannot be hydrogen, and n is a number from 1 to 3. The composition may further comprise a solvent and/or a catalyst.