Degradable extrusion resistant compositions and articles of manufacture

A method of manufacturing a degradable article, the method comprising:

• compressing a combination of a filler and a polyurethane forming composition at a temperature of about 20° C. to about 150° C. and a pressure of about 100 psi to about 10,000 to provide a molded part, the filler comprising a powder comprising particles having an average size of about 5 microns to about 500 microns or a combination of the powder and a fiber having an average length of about ⅛ inch to about 5 inches;
• and
• heating the molded part at a temperature of about 60° C. to about 150° C. to provide the disintegrable article;
• wherein the polyurethane forming composition comprises a first composition comprising a polyol component, a polyisocyanate component, and a first carboxylic acid functionalized alcohol;
• or a second composition comprising a polyurethane prepolymer, a curative, and a second carboxylic acid functionalized alcohol;
• or a combination of the first composition and the second composition,
• wherein the powder comprises one or more of the following:
• sodium chloride;
• a dissolvable silicate;
• aluminum hydroxide oxide;
• adipic acid;
• or succinic acid, the dissolvable silicate comprising about 66 to about 80 wt. % of SiO2, about 0 to about 35 of Na2O, 0 to about 35 wt. % of K2O, 0 to about 20 wt. % of CaO, and 0 to about 10 wt. % of MgO, provided that the sum of the weights of Na2O and K2O is about 20 wt. % to about 40 wt. %, each based on the total weight of the dissolvable silicate.

A method to degrade an article, the method comprising:

• exposing the article to a fluid at a temperature of about 25° C. to about 300° C.,
• the article comprising a polyurethane that comprises ester groups in a backbone of the polyurethane and carboxylic acid groups attached to the backbone of the polyurethane;
• and a filler comprising one or more of the following:
• a powder comprising particles having an average particle size of about 5 microns to about 500 microns;
• or a combination of the powder with a fiber having an average length of about ⅛ inch to about 5 inches,
• wherein the powder comprises one or more of the following:
• sodium chloride;
• a dissolvable silicate;
• aluminum hydroxide oxide;
• adipic acid;
• or succinic acid, the dissolvable silicate comprising about 66 to about 80 wt. % of SiO2, about 0 to about 35 of Na2O, 0 to about 35 wt. % of K2O, 0 to about 20 wt. % of CaO, and 0 to about 10 wt. % of MgO, provided that the sum of the weights of Na2O and K2O is about 20 wt. % to about 40 wt. %, each based on the total weight of the dissolvable silicate.

A degradable polymer composition comprising,

• a polyurethane comprising ester groups in a backbone of the polyurethane and carboxylic acid groups attached to the backbone of the polyurethane;
• and
• a filler comprising a fiber having an average length of about ⅛ inch to about 5 inches, or a combination of the fiber with a powder, the powder comprising particles having an average size of about 5 microns to about 500 microns or a combination of the powder,
• wherein the powder comprises one or more of the following:
• sodium chloride;
• a dissolvable silicate;
• aluminum hydroxide oxide;
• adipic acid;
• or succinic acid, the dissolvable silicate comprising about 66 to about 80 wt % of SiO2, about 0 to about 35 of Na2O, 0 to about 35 wt % of K2O, 0 to about 20 wt % of CaO, and 0 to about 10 wt % of MgO, provided that the sum of the weights of Na2O and K2O is about 20 wt % to about 40 wt %, each based on the total weight of the dissolvable silicate, and
• the fiber comprises glass fiber, and the glass fiber contains a dissolvable silicate comprising about 66 to about 80 wt. % of SiO2, about 0 to about 35 of Na2O, 0 to about 35 wt. % of K2O, 0 to about 20 wt. % of CaO, and 0 to about 10 wt. % of MgO, provided that the sum of the weights of Na2O and K2O is about 20 wt. % to about 40 wt. %, each based on the total weight of the dissolvable silicate.