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US 10,400,080 B2Granted
Fibrillated polymer compositions and methods of their manufacture
AssigneeSabic Global Technologies B.V.
InventorsVaidyanath Ramakrishnan, Satish Kumar Gaggar, Malvika Bihari, Frederico Marques Ferreira Custodio, Johannes Martinus Dina Goossens
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Abstract
The disclosure is directed to polymer compositions comprising a matrix polymer component comprising a crystalline or semi-crystalline polymer; and a fibrillated fluoropolymer, a fibrillated fluoropolymer encapsulated by an encapsulating polymer, or a combination thereof. Methods of preparing and using these polymer compositions, as well as articles comprising the polymer compositions, as also described.
Claims9
A polymer composition consisting of:
- a matrix polymer component consisting of polybutylene terephthalate, polyethylene terephthalate, polytrimethylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, or a combination thereof
- 0.1 wt. % to 15 wt. %, based on the weight of the polymer composition, of a fibrillated fluoropolymer consisting of styrene acrylonitrile copolymer encapsulated polytetrafluoroethylene;
- and
- an additional additive component consisting of one or more fillers, lubricants, pigments, dyes, colorants, UV stabilizers, antioxidants, plasticizers, anti-static agents, or blowing agents,
- wherein the composition has a complex viscosity, measured at a 0.1 rad/sec, of between 4500 Pa·s and 70,000 Pa·s, measured at a temperature of between 230° C. and 260° C., or
- wherein the composition has an extensional viscosity of between 11,000 and 90,000 Pa·s at a maximum Henky strain of 2.0 at a strain rate of 1s−1, measured at a temperature of between 230° C. and 260° C.
3 more elements
Dependencies are inferred from the claim text.