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$Chemical-Resistant Gloves: Butyl Latex over Natural Rubber on a Cotton Liner (Hart & Collyer, US 4,190,685, 1980)$

John A. Hart and John C. Collyer · Public domain (US patent drawing)

작성자

Tex

3. 11월 2026

Chemical-Resistant Gloves: Butyl Latex over Natural Rubber on a Cotton Liner (Hart & Collyer, US 4,190,685, 1980)

Dipped rubber gloves built in layers on a knitted cotton liner: one coat of natural rubber, then five coats of butyl rubber, which lets very little liquid or vapour through. Each coat is dipped from latex on a porcelain hand form, and the whole glove is cured under steam and air pressure. Made in Canada to protect soldiers against chemical warfare agents; worn gloves showed no penetration in 24 hours of field use. Result: flexible, soft chemical-resistant gloves with a comfortable cotton lining. Source: J. A. Hart and J. C. Collyer, US 4,190,685 (1980), latex method. Unknown: sizes, the pigments. Picture: the patent drawing.

고급

Unknown

안내

Sew the cotton liner

Cut knitted or interlock cotton fabric to a glove shape and sew it into a glove. It stretches both ways, soaks up sweat and makes the glove easy to put on and take off. Not given: sizes, the knit.

이 단계의 재료:

면 니트 원단1 liner

필요한 도구:

가위

재봉틀

알 수 없는 치수

Dip in coagulant

Pull the liner onto a porcelain hand form and flame it to smooth off the surface. Dip it in a 10 % solution of acetic acid in acetone, then turn the form for about 2½ minutes at 24 °C until it is dry. The coagulant sets the latex before it can soak through the cloth.

이 단계의 재료:

아세트산(빙초산)1 10 % in acetone

아세톤1 solvent

필요한 도구:

장갑 손틀

프로판 토치

Dip the natural rubber coat

Dip the liner into natural rubber latex (the patent uses LOTOL 1185) and leave it 5 seconds. Draw it out, turn it upside down and let it dry. Scrub the rubber film with an abrasive cleaner, a brush and water, and dry it again.

이 단계의 재료:

$천연고무 라텍스$ 천연고무 라텍스1 bath

연마 세정제1 as needed

필요한 도구:

장갑 손틀

솔(억센 털)

Mix the butyl latex bath

Mix, in parts by dry weight: butyl rubber latex 100, sulphur 3, zinc dibutyldithiocarbamate 4, zinc oxide 5, formaldehyde 0.1 as a preservative, a liquid dithiocarbamate curing accelerator 4 (Merac 255 in the patent), and 6.5 of pigments (olive drab in the patent). Not given: the pigments.

이 단계의 재료:

$부틸고무 라텍스$ 부틸고무 라텍스100 parts dry

황3 parts

디부틸디티오카바민산 아연4 parts

산화아연 분말5 parts

폼알데하이드 용액(37 % 포르말린)0.1 parts formaldehyde

액상 디티오카바메이트 촉진제4 parts

알 수 없는 재료6.5 parts pigment

필요한 도구:

젓는 도구

Dip five butyl coats

Dip the glove into the butyl latex and draw it out at 10 cm per minute. At once turn the form at about 8 rpm at 24 °C until the film has gelled, then dry it upside down in an oven at 66 °C for 1 hour. Wash, dip and dry again until there are five butyl coats; do not use the abrasive cleaner on the butyl film.

필요한 도구:

장갑 손틀

건조 가마

Cure and finish

Dry the glove at 66 °C for 1 hour. Cure it for 3 hours in a pressure vessel with 30 psi steam in the jacket (131 °C) and 26 psi air in the chamber. Strip the gloves from the forms while hot; when cool, trim them and wash them in soapy water.

이 단계의 재료: