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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)

创建者

Tex

3. 十一月 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.

高级

Unknown

说明

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.

此步骤所需材料：

棉针织布1 liner

所需工具：

剪刀

缝纫机

未知尺寸

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.

此步骤所需材料：

乙酸（冰醋酸）1 10 % in acetone

丙酮1 solvent

所需工具：

手套手模

丙烷喷灯

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.

此步骤所需材料：

$天然橡胶胶乳$ 天然橡胶胶乳1 bath

研磨清洁剂1 as needed

所需工具：

手套手模

硬毛刷

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.

此步骤所需材料：

$丁基橡胶胶乳$ 丁基橡胶胶乳100 parts dry

硫3 parts

二丁基二硫代氨基甲酸锌4 parts

氧化锌粉末5 parts

甲醛溶液（37 % 福尔马林）0.1 parts formaldehyde

液体二硫代氨基甲酸盐促进剂4 parts

未知材料6.5 parts pigment

所需工具：

搅拌器

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.

所需工具：

手套手模

干燥炉

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.

此步骤所需材料：