Patent ID: 11965098
Assignee: HUNTSMAN INTERNATIONAL LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  D | IPC C

Claim 4:
5. A method of making a lignocellulosic mixture comprising:
(a) providing a binder composition comprising:
(i) an isocyanate compound;
(ii) a sulfonic acid compound;
(iii) an acidifying compound different from component (ii) selected from an anhydrous mineral acid, an anhydrous Lewis acid, an anhydrous chloride and an organic acid; and optionally
one or more of (iv) a catalyst compound, and (v) an additive compound;

wherein the binder composition contains greater than or equal to 90 wt. % of Component (i) and 0.05 wt. % to 6 wt. % of Component (ii) based on the total weight of the binder composition and Components (iii), (iv) and (v) comprise the remainder of the binder composition and
wherein an ADHESIVE MEMORY LOSS of the binder composition is less than or equal to 50 and a METAL LOSS on a surface of a metallic article that comes into contact with the binder composition is greater than or equal to −0.00009; and wherein ADHESIVE MEMORY LOSS is calculated using Formula X and wherein METAL LOSS is calculated using Formula Y:

ADHESIVE MEMORY LOSS=100*[(BndS3−BndS0)/BndS0]  Formula X:

wherein
BndS3 means a composition's bond strength as determined using the ADHESION TEST after a wood veneer sample has been pre-cured for 3 hours at 60° C. and 90% relative humidity;
BndS0 means a composition's bond strength as determined using the ADHESION TEST after the wood veneer sample has been pre-cured for 0 hours at 60° C. and 90% relative humidity;
and

METAL LOSS=(SLOPE S1+SLOPE S2+SLOPE S3+SLOPE S4+SLOPE S5)/5  Formula Y:

wherein

SLOPE S1=(W10−W0)/10

wherein
W10 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 10 pressing cycles;
W0 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 0 pressing cycles;

SLOPE S2=(W20−W10)/10

wherein W20 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 20 pressing cycles;
W10 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 10 pressing cycles;

SLOPE S3=(W30−W20)/10

wherein
W30 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 30 pressing cycles;
W20 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 20 pressing cycles;

SLOPE S4=(W40−W30)/10

wherein
W40 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 40 pressing cycles;
W30 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 30 pressing cycles;

SLOPE S5=(W50−W40)/10

wherein
W50 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 50 pressing cycles;
W40 means a steel shim's weight as measured using the METAL LOSS TEST after the steel shim has undergone 40 pressing cycles;
(b) providing one or more lignocellulosic particles; and
(c) blending the binder composition and at least a portion of the one or more lignocellulosic particles to form the lignocellulosic mixture.