TH64901B - The process of manufacturing polythyol compounds for optical materials and compounded polymer compositions. - Google Patents

Abstract

DC60 (20/07/60) Process of polythiol compounds for use as optical materials. In the interaction between 2-mercaptoethanol and epihalohydrin compounds through the formation of polyalcohol, in 2-mercaptoethanol Almebis (2-hydroxyethyl) disulfide is not more than 0.5% by weight.

Claims (3)

Disclaimer (all) which will not appear on the advertisement page. : ------ 06/10/2017 ------ (OCR) Page 1 of 2 pages. 1.Process for the production of polythyol compounds for optical materials, consisting of: 2-mercaptoethanol with and epihaloidrin compounds, represented by structure (1) to obtain structural polyalcoholic (2), reactivity Poly alcohols with thiourea to obtain thiolonium salt and Thyolonium salt hydrolysis reaction using ammonia solution to produce substance Contains polythylol, where the bis (2-hydroxyethyl) disulfide component in 2-mercuptoethanol is 0.45% by weight or less. Than: (chemical formula) 2. The process for the production of polythyol compounds for use as an optical material in accordance with claim 1, where X in the aforementioned structure (1) represents the chlorine atom p2 of the number 2. 3. The process for the production of polythyol compounds for use as an optical material in accordance with claim 1 or 2, also includes: 2- mercaptoethanol To reduce bis components (2-hydroxyethyl) disulfide in 2-mercuptoethanol was 0.45% wt or less before the step for the 2-mercury reaction. Ceptoethanol, Fluids and Epihalohydrin compounds ------------ 1 Method for producing polythyol compounds for use as optical materials. That in the production method A polythyol compound whose structure is represented by structure 3 (structure 3) (chemical formula) (X in structure refers to the halogen atoms) obtained by the interaction between 2-mercuptoethanol and epihalohydrin compounds with Structure as shown with structure 1 (structure 1) (chemical formula) through the emergence of structured polyalcohols as shown by structure 2 (structure 2) (chemical formula) in 2-mercaptoethan. Aolmibis (2-hydroxyethyl) disulfide is not more than 0.5% by weight. 2 Method for producing polythyol compounds for use as an optical material in claim 1. The poly alcohol with the structure shown by structure 2 is hydrolyzed through thiol salt. In the case of the hydrolysis of thiolonium salts, aluminum by using thiourea 3 is a method for producing polythyol compounds for optical materials. Four ammonia solutions were used to produce polythyol compounds for optical material in one of the claims. In claim 1 ~ 3, where X in structure 1 refers to the chlorine atom 5, the polythyol compound for use as an optical material. Obtained from the production method in which of the claim On claim 1 ~ 4 6, the polymer composition contains polythyol compounds for use as an optical material in claim 5 and polyiso (thio) cyanate as elements. 7 Resin obtained by hardening the polymer composition in claim 6 8 Optical material derived from resin in claim 7 9 Resin-derived lenses in claim 7