Back to results
US 11,390,714 B2Granted
Polyarylene sulfide resin and preparation method thereof
AssigneeHDC Polyall Co., Ltd.
InventorsSe-Ho Lee, Sung-Gi Kim
Life of this patent
Estimating the term…
Abstract
The present invention relates to a polyarylene sulfide which has more improved compatibility with other polymer materials or fillers, and a method for preparing the same. The polyarylene sulfide is characterized in that at least part of end groups of the main chain of the polyarylene sulfide is hydroxyl group (—OH), the polyarylene sulfide contains iodine bonded to its main chain and free iodine, and the content of iodine bonded to the main chain and free iodine is 10 to 10,000 ppmw.
Claims11
A polyarylene sulfide in which at least part of end groups of a main chain of the polyarylene sulfide are hydroxyl groups (—OH),
- wherein the polyarylene sulfide contains iodine bonded to the main chain and free iodine, and a content of iodine bonded to the main chain and free iodine is 10 to 10,000 ppmw, and
- wherein the polyarylene sulfide shows a peak in the range of 3300 to 3600 cm−1, in a FT-IR spectrum, and a relative height intensity of the peak in the range of 3300 to 3600 cm−1 is 0.01 to 3%, when a height of a ring stretch peak shown in the range of 1400 to 1600 cm−1 is assumed as an intensity of 100%, in the FT-IR spectrum.
Dependencies are inferred from the claim text.