A method of charging a nonwoven web of thermoplastic microfibers to provide electret filter media is provided. The method includes impinging on a nonwoven web of thermoplastic nonconductive microfibers capable of having a high quantity of trapped charge jets of water or a stream of water droplets at a pressure sufficient to provide the web with filtration enhancing electret charge and drying said ...

PCT No. PCT/EP95/01730 Sec. 371 Date Mar. 18, 1996 Sec. 102(e) Date Mar. 18, 1996 PCT Filed May 6, 1995 PCT Pub. No. WO95/32141 PCT Pub. Date Nov. 30, 1995An apparatus for applying a liquid to threads of a yarn sheet. The apparatus comprises multiple thread wetting elements, each of which has at least one thread guide groove for each thread. In the thread guide groove the thread travels with the l...

Adhesive tape having a stitch bonded fabric (mali fabric) support coated on one or both sides with an adhesive.

Natural rubber latex compounds are modified by the addition of a high styrene content styrene-butadiene copolymer. The films prepared from these modified NR latex compositions exhibit improved tear strength and a good balance of other properties.

To produce a cellulosic article, a cellulosic amine oxide solution is pressed through a nozzle or through a slit, then passed through an air slit and finally coagulated in a precipitation bath. According to the invention, it is not stretched in the air gap, i.e. the ratio of discharge rate to hole emergence rate is at most 1; only the coagulated cellulose is stretched or deep-drawn.

An extrudable vinylidene chloride composition is useful in packaging films where controlled CO2 and O2 transmission rates benefit the packaging of products such as gassing cheese. The compositon, and film made therefrom, comprises 100 parts by weight of at least one vinylidene chloride copolymer; between 4 and 15 parts by weight of a plasticizer; and between 4 and 15 parts by weight of an acrylate...

Coatings, in particular base lacquers, that contain at least one hydroxyl group-containing polyester are characterised in that (1) the hydroxyl group-containing polyester has a mean molecular weight Mw from 40,000 to 200,000 and a heterogeneity Mw/Mn > 8; (2) at least 50% by weight dicarboxylic acids or their esterifiable derivatives are used to produce the polyester, the proportion of phthalic an...

Retinoids of the formula R1-OCH(R2)OC(O)R3 wherein R1 signifies 13-cis-retinoyl, R2 signifies hydrogen or lower-alkyl and R3 signifies straight-chain lower-alkyl can be used as medicaments in the case of dermatological disorders.

Compounds of formula wherein R<1> represents: an optionally substituted alkyl, alkenyl, or alkynyl group ; or an optionally substituted cycloalkyl group; or an optionally substituted cycloalkenyl group ; or a group such as aryl, aralkyl, COOR<3>, COR<3>, CN, NO<2>, NR<3>R<4>, OR<5>, halogen atom. R2 represents a group such as NO<2>, CN, R<5>, S(O)mR<5>, SO2NR<3>R<4>, COOR<3>, COR<3>, CONR<...

PCT No. PCT/FR90/00253 Sec. 371 Date Oct. 7, 1991 Sec. 102(e) Date Oct. 7, 1991 PCT Filed Apr. 10, 1990 PCT Pub. No. WO90/12055 PCT Pub. Date Oct. 18, 1990.The invention relates to a process of cross-linking collagen. This process is of the type comprising the formation of amide bonds by means of acylazide groups and is characterized in that the collagen is reacted with diphenylphosphorylazide. Th...

Dyestuff salts of formula (I) are new, where n=1,2,3 or 4; and (i) F=radical of an amionic dyestuff; and A=Radical contg. at least one ammonium, cycloammonium or immonium gp. and at least one aliphatic or cycloaliphatic gp. or an aromatic gp. substd. by at least one -CO- gp., or one heteraromatic gp. from the triazine, pyrimidine, quinazdine, quinoxaline, phthalazine or phthalimidine series, and w...