发明名称 PROCESS FOR PRODUCING LIQUID WRITE CRAYON
摘要 A liquid write crayon is disclosed. The crayon comprises a mixture of at least one wax and encapsulated marking liquid. This crayon contains a large amount of the encapsulated marking liquid and yet maintains a proper balance of fluidity, lubricity and strength. The crayon is produced by a combination of steps which include dry blending, light pressure and mild heating.
申请公布号 US3769045(A) 申请公布日期 1973.10.30
申请号 USD3769045 申请日期 1971.06.22
申请人 NATIONAL CASH REGISTER CO,US 发明人 MAIERSON T,US;POWERS E,US;BOWLES T,US
分类号 C09D13/00;(IPC1-7):C09D13/00;C09D11/00 主分类号 C09D13/00
代理机构 代理人
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