06299677 is referenced by 35 patents and cites 52 patents.

No-bake inorganic binder compositions for binding particulate material and methods for curing such inorganic binders. The inorganic binder compositions are composed of silicate and phosphate components. The no-bake compositions further contain curing catalyst such as a catalyst selected from the group consisting of aliphatic carbonates, cyclic alkylene carbonates, aliphatic carboxylic acid esters, cyclic carboxylic acid esters, phosphate esters and mixtures thereof. The composition produces a binder having the advantageous strength properties of a silicate binder system with the water breakdown properties of a phosphate binder system. Thus, relative to an all-silicate binder system, the present invention has improved mechanical shakeout and improved water collapsibility. Also, relative to conventional all-phosphate binder system, the present invention has superior hot strength, i.e., the foundry cores and molds do not soften at elevated temperatures. Methods of making and using the binder compositions and the resulting products are of particular interest to the foundry art.

Title
Binders for cores and molds
Application Number
9/202937
Publication Number
6299677 (B1)
Application Date
June 25, 1999
Publication Date
October 9, 2001
Inventor
Brian E Algar
Southampton
US
Leonid S Zaretskiy
Chicago
IL, US
Kwok tuen Tse
Berwyn
IL, US
Calvin K Johnson
Lockport
IL, US
Assignee
Borden Chemical
OH, US
IPC
C04B 12/04
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