Retort adhesive composition
AssigneesDow Global Technologies LLC, Rohm and Haas Company
InventorsJie Wu, Sudhanwa D. Dewasthale, Mai Chen
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Abstract
A solvent-based polyurethane retort adhesive system for producing laminates including: (A) at least one isocyanate compound, Component A, comprising: a blend of: (i) at least one aliphatic-based isocyanate and (ii) at least one aromatic-based isocyanate; and (B) at least one isocyanate-reactive component, Component B, comprising: (i) at least one phosphate ester compound and (ii) at least one polyether polyol having an average molecular weight of less than 1,500 g/mol; a process for producing the above adhesive; a multi-layer laminate product including the above adhesive; and a process for producing a laminate product using the above adhesive.
Claims20
A solvent-based retort adhesive composition consisting of:
- (A) at least one isocyanate compound, Component A, consisting of a blend of:
- (i) at least one aliphatic-based isocyanate and (ii) from 30 wt % to 90 wt % of at least one aromatic-based isocyanate based on the total wt % of Component A;
- (B) at least one isocyanate-reactive component, Component B, consisting of:
- (i) at least one phosphate ester compound,
- (ii) a first polyether polyol having an average molecular weight of about 1,500 g/mol, and
- (iii) a second polyether polyol having an average molecular weight from 250 g/mol to less than 1,000 g/mol;
- and
- (C) a solvent.
A solvent-based retort adhesive composition consisting of:
- (A) an isocyanate compound, Component A, consisting of a blend of
- (i) at least one aliphatic-based isocyanate, and
- (ii) from 30 wt % to 90 wt % of at least one aromatic-based isocyanate based on the total wt % of Component A;
- (B) an isocyanate-reactive component, Component B, consisting of
- (i) a phosphate ester compound,
- (ii) a first polyether polyol, and
- (iii) a second polyether polyol different than the first polyether polyol.
Dependencies are inferred from the claim text.