GB1346207A - Synthetic polyvinyl alcohol fibres - Google Patents
Synthetic polyvinyl alcohol fibresInfo
- Publication number
- GB1346207A GB1346207A GB3925171A GB3925171A GB1346207A GB 1346207 A GB1346207 A GB 1346207A GB 3925171 A GB3925171 A GB 3925171A GB 3925171 A GB3925171 A GB 3925171A GB 1346207 A GB1346207 A GB 1346207A
- Authority
- GB
- United Kingdom
- Prior art keywords
- degree
- solution
- fibre
- polyvinyl alcohol
- fibres
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/14—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
Abstract
1346207 Water-soluble polyvinyl alcohol fibres KURARAY CO Ltd 20 Aug 1971 [22 Aug 1970] 39251/71 Heading B5B An oriented synthetic polyvinyl alcohol fibre soluble in water at a temperature not higher than 30‹ C. has a degree of polymerization of from 400-1000, a degree of saponification of from 80-97 %, a sonic modulus of from 3À0 Î 10<SP>11</SP> to 1À0 x 10<SP>11</SP> dynes/em.<SP>2</SP>, a degree of crystallinity of from 35-10%, a crystallite length along the fibre axis of from 55-30Š and a breadth at the half-maximum intensity of the interference profile in the small-angle X-ray scattering of from 45-25 minutes. Preferably, the degree of polymerization is from 500-800, the degree of saponification is from 85-95%, and the crystallite length is from 50-30Š. Such fibres may be made by forming a solution of polyvinyl alcohol having a degree of saponification of from 80- 97% and a degree of polymerization of from 400-1000 having a water content of from 33- 70%; and spinning said solution at 95 to 110‹ C. through a spinning nozzle into a spinning tube, collecting the spun fibre at a rate of up to 40 times the speed at which the solution leaves the spinning nozzle; drying the resulting spun fibres; and hot-drawing the dried fibre at 110- 180‹ C. to a total draw ratio of 1À5 to 6 times. Preferably, the said spun fibre solution is collected on a take-up roll having a linear speed of from 20 to 40 times that of the solution leaving the nozzle.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7371870A JPS5417053B1 (en) | 1970-08-22 | 1970-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1346207A true GB1346207A (en) | 1974-02-06 |
Family
ID=13526266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3925171A Expired GB1346207A (en) | 1970-08-22 | 1971-08-20 | Synthetic polyvinyl alcohol fibres |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5417053B1 (en) |
| AT (1) | AT318793B (en) |
| AU (1) | AU451351B2 (en) |
| CH (1) | CH543602A (en) |
| FR (1) | FR2104429A5 (en) |
| GB (1) | GB1346207A (en) |
| PH (1) | PH9368A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200270549A1 (en) * | 2015-12-03 | 2020-08-27 | E. I. Du Pont De Nemours And Company | An enzyme delivery system and methods relating thereto |
| JP7303738B2 (en) * | 2019-12-25 | 2023-07-05 | 株式会社クラレ | Polyvinyl alcohol fiber and fiber structure |
-
1970
- 1970-08-22 JP JP7371870A patent/JPS5417053B1/ja active Pending
-
1971
- 1971-08-17 FR FR7129974A patent/FR2104429A5/fr not_active Expired
- 1971-08-20 AT AT730371A patent/AT318793B/en not_active IP Right Cessation
- 1971-08-20 CH CH1227371A patent/CH543602A/en not_active IP Right Cessation
- 1971-08-20 GB GB3925171A patent/GB1346207A/en not_active Expired
- 1971-08-23 AU AU32639/71A patent/AU451351B2/en not_active Expired
- 1971-08-23 PH PH12775*UA patent/PH9368A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5417053B1 (en) | 1979-06-27 |
| DE2141609A1 (en) | 1972-03-09 |
| PH9368A (en) | 1975-10-22 |
| AU3263971A (en) | 1973-03-01 |
| CH543602A (en) | 1973-10-31 |
| FR2104429A5 (en) | 1972-04-14 |
| AU451351B2 (en) | 1974-08-08 |
| AT318793B (en) | 1974-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |