GB305043A - - Google Patents

Info

Publication number
GB305043A
GB305043A GB2867/29A GB286729A GB305043A GB 305043 A GB305043 A GB 305043A GB 2867/29 A GB2867/29 A GB 2867/29A GB 286729 A GB286729 A GB 286729A GB 305043 A GB305043 A GB 305043A
Authority
GB
United Kingdom
Prior art keywords
water
resin
freed
vacuum
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2867/29A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB305043A publication Critical patent/GB305043A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/12—Hydrolysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor

Abstract

305,043. I. G. Farbenindustrie Akt.- Ges. Jan. 28, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vinyl ester resins are freed from unpolymerized ester by heating to about 80‹-100‹ C. in water or water vapour, whereby the volatile material in the resin is replaced by water. The water is then removed by treating the resin in a vacuum at about 100‹ C. or by cooling, comminuting, and submitting to a vacuum. In an example, the resinous polymerization product from vinyl acetate is placed in a kneading- machine provided with a distilling-device, and heated to 80‹ C. while stirring, water vapour being blown in. After about an hour, the mass is kneaded at 80‹-100‹ C. under reduced pressure to remove the moisture. After cooling, a colourless product is obtained which may be freed from bubbles by again heating to 80‹-100‹ C. If a higher temperature is applied, the viscosity and elasticity of the resin are diminished.
GB2867/29A 1928-01-28 1929-01-28 Expired GB305043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE305043T 1928-01-28

Publications (1)

Publication Number Publication Date
GB305043A true GB305043A (en) 1929-09-05

Family

ID=31894404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2867/29A Expired GB305043A (en) 1928-01-28 1929-01-28

Country Status (1)

Country Link
GB (1) GB305043A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074565A1 (en) * 1999-08-06 2001-02-07 Kuraray Co., Ltd. Production process for polymers with hydroxyl groups and polymers obtained by the production process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074565A1 (en) * 1999-08-06 2001-02-07 Kuraray Co., Ltd. Production process for polymers with hydroxyl groups and polymers obtained by the production process
US6632878B1 (en) 1999-08-06 2003-10-14 Kuraray Co., Ltd. Production process for polymers with hydroxyl groups and polymers obtained by the process

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