Biodegradable poly(lactic acid)s having improved physical proper

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

525415, 528361, C08G 6308

Patent

active

054342414

ABSTRACT:
This specification provides a biodegradable poly(lactic acid) of a star-shaped structure having a high molecular weight of more than 30,000 with excellent tensile strength and a process for its preparation which comprises direct polycondensation of lactic acid using polyhydroxyl compound having at least four hydroxyl groups.

REFERENCES:
patent: 4273920 (1981-06-01), Nevin
patent: 5225521 (1993-07-01), Spinu
Macromolecules, vol. 5, No. 4, Jul.-Aug. 1972, J. E. L. Roovers, et al., "Preparation and Characterization of Four-Branched Star Polystyrene", pp. 384-388.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Biodegradable poly(lactic acid)s having improved physical proper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Biodegradable poly(lactic acid)s having improved physical proper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biodegradable poly(lactic acid)s having improved physical proper will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2419328

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.