Stock material or miscellaneous articles – Composite – Of polyisocyanurate
Patent
1982-09-29
1984-12-11
Lesmes, George F.
Stock material or miscellaneous articles
Composite
Of polyisocyanurate
428426, 428438, 428441, 428442, 427202, 427421, 427154, B32B 2700
Patent
active
044878079
ABSTRACT:
A method is disclosed for protecting glass surfaces in a stack of glass sheets by treating the surfaces with a mixture of stain-inhibiting organic acids which crystallize on the glass, and separating adjacent surfaces with an interleaving material.
REFERENCES:
patent: 3723312 (1973-03-01), Hay, Jr.
patent: 3798112 (1974-03-01), Hay, Jr.
patent: 4011359 (1977-03-01), Simpkin et al.
patent: 4200670 (1980-04-01), Albach
Duffer Paul F.
Franz Helmut
Kelly Joseph D.
Buffalow E. Rollins
Lesmes George F.
PPG Industries Inc.
Seidel Donna L.
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