Photosensitive element for forming a lithographic negative which comprises a support bearing a dry photosensitive layer consisting essentially of an intimate mixture of colloidal metal particles, e.g. , silver, etc. , colloid binder, free radical producing compound, and mercaptan compound, e.g. , 2-mercaptobenzoxazole.
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In this paper, the loose mixture with aluminum phosphate colloid as binder and metallurgical magnesia as hardening agent for shell mold was studied.
研究了以磷酸铝为粘结剂、煅烧冶金镁砂为硬化剂的壳型松散料。
A new type of carbon electrode using colloid-pitch as complex binder was made. It's main physical properties were measured and analyzed.
本文用凝胶—沥青复合粘结剂研制成一种新型少烟害炭素电极，并对其主要物理性能作了测试分析。
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