Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1976-06-24
1978-09-12
Woodberry, Edward M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
260 22R, 264210F, 528308, C08G 6312
Patent
active
041137043
ABSTRACT:
Significantly higher productivity of polyester feed yarn is achieved when the polymer from which the feed yarn is melt spun is chain-branched with multifunctional chain branches having 1-15 microequivalents of reactive branching sites based on one gram of the polymer. This productivity increase (over conventional production employing the same spinnerette in accordance with teachings of the prior art as applied generally to unbranched polymers) may be achieved specifically by spinning a feed yarn (of the same filament denier and draw ratio) at a higher throughput rate at a higher windup speed followed by draw-texturing (at the same draw ratio to the same drawn denier); or by spinning at a higher throughput rate employing the same windup speed a feed yarn of higher denier and draw-ratio followed by draw-texturing at the higher draw ratio to the same drawn denier; or by any combination thereof.
The invention herein claimed includes the specific polymer suitable for high throughput spinning as a new composition of matter and its production as a process improvement in the production of drawn polyester yarn.
REFERENCES:
patent: 3223752 (1965-12-01), Tate et al.
patent: 3427267 (1969-11-01), Stieger et al.
patent: 3649571 (1972-03-01), Keck
patent: 3772872 (1973-11-01), Piazza et al.
patent: 3816486 (1974-06-01), Vail
Chem. Absts., vol. 74:32629f, "Stabilized Branched Polyesters," Shima et al.
Chem. Absts., vol. 79:54113p, "Synthesis--Polyesters--Alcohols," Bolotov et al.
Chem. Absts., vol. 81:14215h, "Modified Poly(Ethylene) (Terephthalate), Ishigaki.
Chem. Absts., vol. 73:88705z, "Manufacturing Stabilized Branched Polyesters," Shima et al.
Estes Robert T.
Maclean Donald L.
Broad, Jr. Robert L.
Monsanto Company
Woodberry Edward M.
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