GB679824A - Improvements in and relating to a pneumatic tyre carcase and method of forming same - Google Patents
Improvements in and relating to a pneumatic tyre carcase and method of forming sameInfo
- Publication number
- GB679824A GB679824A GB20319/48A GB2031948A GB679824A GB 679824 A GB679824 A GB 679824A GB 20319/48 A GB20319/48 A GB 20319/48A GB 2031948 A GB2031948 A GB 2031948A GB 679824 A GB679824 A GB 679824A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- cord
- water
- cords
- solution
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
A bonding agent for impregnating tyre cords (see Groups IV (c) and IX) consists of GRS latex type II, 250 lb.; natural latex, 25 lb.; water 250 lb.; resorcinol formaldehyde solution 300 lb. The resorcinol formaldehyde solution is prepared as follows:-water 255 lb.; resorcinol 14 lb.; sodium hydroxide 1 lb.; formalin 30 lb. Ammonia may be added. An alternative composition is:-water, 70.5 lb; sulphonated fatty ester, 1.5 lb.; water-soluble phenol formaldehyde, 12 lb.; GRS latex type III, 16 lb.ALSO:<PICT:0679824/IV (c)/1> In the production of multiply tyre cord (see Group IX) a number of cords 40 are fed under tension from a creel, impregnated with bonding solution in baths 41, 42 and passed between rollers 43, 44; the top rollers are of synthetic rubber and the bottom rollers of stainless steel, and rollers 43 have a higher surface speed than rollers 44 so that the yarns are relaxed to permit penetration. The cords are then set in a stretched condition in an oven 50. The cord may be of cotton, staple rayon, other cellulosic fibres or staple synthetic fibres (e.g. nylon). The bonding agent (see Group IV (a)) may include resins and wetting agents in emulsion, solution or dispersion, and preferably includes a formaldehyde resin and a natural or synthetic rubber latex, the latter ingredient providing bonding of the cord with the rubber of the tyre carcass. The cord may be completely impregnated with the bonding agent, or the impregnation may stop short of the centre to leave an untreated central core. Specification 548,794 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US679824XA | 1947-08-01 | 1947-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB679824A true GB679824A (en) | 1952-09-24 |
Family
ID=22079686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20319/48A Expired GB679824A (en) | 1947-08-01 | 1948-07-30 | Improvements in and relating to a pneumatic tyre carcase and method of forming same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB679824A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2869610A (en) * | 1955-03-04 | 1959-01-20 | Us Rubber Co | High-speed tire |
-
1948
- 1948-07-30 GB GB20319/48A patent/GB679824A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2869610A (en) * | 1955-03-04 | 1959-01-20 | Us Rubber Co | High-speed tire |
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