US2606844A - Method of treating cotton cord - Google Patents

Description

Patented Aug. 12, 1952 p 2,606,844

2,606,844 I METHOD or TREATING COTTON com) MatthewW, Wilson, Quyahoga. Falls, and Edward T. Lessig, Silver Lake, Ohio, assignors to The B. F. Goodrich Company, New York N. Y, a corporation of New York No Brewing,-v Application oetob ,29, 1947:,-

Serial No. 782,958 7 Claims. (01. 1177) j UNITED STATES PATENT {icesles- This invention relates to the preparation, of then introduced into anoven inhwhicha temyarn, or cord which may be used in the manuperature, .of from 225 to 310 1 1 wasmaintairled. facture of pneumatic tlres, reinforced belts, and While the impregnated cord was in the oven a he hke, and has partlcular reference to a methsubstantlally 531111 12 3 0 1 of 51100111 five 0d of dipping yarn or cord with a resulting in 5 pounds W mamtalned 0n the 00rd i h crease in tensile strength. cord was dry, which required a period of irom It is an object of this invention to increase the one. to ten minutes. Thi l. '-T 1 ilfi 'e ound tensile strength of yarn or cord which is to be On a cord 0 hanks er notin ,q li l e used in composite rubber-fabric or rubber-cord t0 0-. am D6 d l e I structures. It is also an object to provide a 10 An th r p rti n i 11? 534116 QQ ZI I t re C d method of setting yarn or cord after a stretchas a d by h m s r s f steps as delng treatment has been completed t 15 a fur scribed above except that instead of the soluther ob eet to provide a treatm t Whlch protion of rosin amine acetate there was employed a body of rubber. It is also an object to com- 15 of an alkyl aryl p l ethe g a l johq wand 0 25% "of treatment of tire cord with a resulting increase employed r t i s cbiij ry nlf.

in tensile strength. Other objects will be appartensile Strength f hetwo treat d. ord ent from the description which 'follows: was then measured. on a's anda Scot t nsi e The objects of this invention are attained by machine with the l sresqlt Rosin amine acetate Conventional solution of rosin amine with an aliphatic mono carboxyhc In addition to the increased tensile acid may be employed, although it is preferred 9 the tlre cords Improved trideeolc, myristic, palmitic, stearic, oleic, linoi f p the cordswere t e s n eic, linolenic, and the like. or these, it is pre m e th S1mllar results are obtalne amine with other weak or If an a is used the solution may vary in strength from the.steps of dlppmg the cord a allowing better impregnation of the rosin amine W111 accpmplish E drying Step in t foll i Steps. First, the cotton tire cord compared to several hours arns may be wet twisted from the dip sorubber squeeze rolls to obtain good lmpregnalution into a final cord and the final cord then tion of the cord with the solution. The cord was v5 stretched and dried at room temperature with a resulting increase i n l reng h I is pregnated cord while maintaining atension from not n cessa y to ha e a y n s ep or a dry 0.2 to 1.0 gram per denier on said cord.

Period 8:8 $11011, Since in normal mill Practice the 5. A method of treating cotton cord for reincOrdS will y at normal room temperature by forcing rubber material which comprises impregthe time the cords ar mp y p ss hating said cord with a 1 t 5% by weight aqueous T rosi am ne acetate d p y b used at y solution of a rosin amine salt of a saturated fatty s a e n the manu actu e of c t tire c the acid containing less than ten carbon atoms, and r v n yar r c r may be mp na y drying the impregnated cord While maintaining a ns a p olu on o by t a the fi m a tension of 0.2 to 1.0 gram per denier on said cord. material in a y other sa s y m e 10 6. A method or manufacturing cotton cord for i stanc tt n y rn may be pp in e resm reinforcing rubber material which comprises imamine acetate solution, wet-twisted, stretched, pregnating said cord it 1 t 5% by i ht and dried while under tension- 9 aqueous solution of rosin amine acetate, and dry- The method outlined herein makes it possible m t impregnated d t temperature f om to further strengthen the tire cords to be used i room temperature to 310 F. while maintaining p m i t s, r i d belts, or other c ma tension of 0.2 to 1.0 gram per denier on said posite rubber fibrous structures, while at the same cord time the adhesion between the rubber and the 7. A method of treating cotton cord for reinfiber is increased. forcing rubber material which comprises impreg- Although we have herein outlined specific mhating said cord with a 1 to 5% aqueous solution bodiments of our invention, we do not intend to of rosin amine acetate, and drying the impreglimit ourselves solely thereto, but to include all Hated cord t; bout oom temperature while or the obvious modifications and variations fallmaintaining t si of 02 t 1,0 gram per ing within the spirit and scope of the appended d ie on aid rd, claims.

We claim: MATTHEW W. WILSON. 1. In a method of .manufacturing cotton cord EDWARD 'I'. LESSIG. for reinforcing rubber material, the steps comprising impregnating the fibers of said. cord with REFEHENCES CITED a three per cent by Weight aqueous Solution of The following references are of record in the rosin amine acetate, anddrying the impregnated me of this patent. cord at a temperature of 300 F. for ten minutes while maintaining a tension of 0.5 gram per UNITED STATES PATENTS denier on the said cord. Number Name Date 2. A method or manufacturing cotton cord for 5 2,103,218 Gwaltney Dec. 21, 1937 reinforcing rubber material which comprises im- 2,137,339 Gwaltney Nov. 22, 1938 pregnating said cord with a 1 to 5% by weight 2,142,688 Brodersen et al. Jan. 3, 1939 aqueous solution of rosin amine acetate and dry- 2,2l8,284 l-lovey et al. Oct. 15, 1940 ing the impregnated cord at a temperature of 2,220,958 Jennings Nov. 12, 1940 from 225 F. to 310 F. while maintaining said 40 2,297,536 Buokwalter Sept. 29, 1942 cord at a tension from 0.2 to 1.0 gram per denier. 2,314,996 Lessig et al Mar. 30, 1943 3. A method of manufacturing cotton cord for 2,346,126 Lessig Apr, 11, 1944 reinforcing rubber material which comprises dip- 2,364,467 Nickerson Dec. 5, 1944 ping said cord in a 1 to 5% by weight aqueous 2,381,398 Bosomworth Aug. 7, 1945 solution of rosin amine acetateand drying the 2,419,922 Tippetts Apr. 29, 1947 impregnated cord at a temperature of 300 F. 2,485,136 Bried Oct. 18, 1949 glgigfigialggsfiid cord at a tension of about OTHER REFERENCES 4. A method of manufacturing cotton cord for Duburg, 11eS DeriVeS AZ0teS c e tireinforcing rubber material which comprises im- (We, Buuetm De Llnstmlt D11 59, April pregnating said cord with a 1 to 5% by weight 1929, Pages aqueous solution of a rosin amine salt of an ali- American Cotton Handbook, 1511 edition, 1941,

phatic mono-carboxylic acid, and drying the im- Pages

Claims (1)

1. 2. A METHOD OF MANUFACTURING COTTON CORD FOR REINFORCING RUBBER MATERIAL WHICH COMPRISES IMPREGNATING SAID CORD WITH A 1 TO 5% BY WEIGHT AQUEOUS SOLUTION OF ROSIN AMINE ACETATE AND DRYING THE IMPREGNATED CORD AT A TEMPERATURE OF FROM 225* F. TO 310* F. WHILE MAINTAINING SAID CORD AT A TENSION FROM 0.2 TO 1.0 GRAM PER DENIER.