Invention Grant
US3639654A Gaseous halo-sulfonic acid anhydride catalysts for curing furfuryl alcohols and furan resins
失效
用于固化富勒烯醇和芳烃树脂的气态HALO-SULFONIC ACID ANHYDRIDE催化剂
- Patent Title: Gaseous halo-sulfonic acid anhydride catalysts for curing furfuryl alcohols and furan resins
- Patent Title (中): 用于固化富勒烯醇和芳烃树脂的气态HALO-SULFONIC ACID ANHYDRIDE催化剂
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Application No.: US3639654DApplication Date: 1969-03-10
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Publication No.: US3639654APublication Date: 1972-02-01
- Inventor: ROBINS JANIS
- Applicant: ASHLAND OIL INC
- Assignee: Ashland Oil Inc
- Current Assignee: Ashland Oil Inc
- Priority: US80581769 1969-03-10
- Main IPC: B22C1/22
- IPC: B22C1/22 ; C08G65/36 ; C08L61/00 ; C08L71/14 ; C08G13/00 ; C08G51/04
Abstract:
HALOGENATED SULFONIC ACID ANHYDRIDES (E.G. TRIFULOROMETHYL SULFONIC ACID ANHYDRIDE) ARE USED TO CURE FURFURYL ALCOHOL OR FURAN RESINS, OPTIONALLY CONTAINING A SILANE. THE METHOD FINDS PARTICULAR UTILITY WHERE THE RESINS ARE USED AS FOUNDRY CORE BINDERS, SINCE THE CATALYST CAN BE INTRODUCED IN GASEOUS FORM, AT ROOM TEMPERATURE.
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