A cork-catnip composite material is provided that is capable of being molded, compressed, extruded or similarly processed into small or large bodies or sheets and allow for the economic manufacture of a variety of products for domestic pets, especially felines. Dried and granulated catnip (or similar olfactory attractant) is blended with a fill material such as powdered or granulated agglomeratecork material are then mixed with a bonding agent. Lignosulfates bonding agents can be used, as well polyurethanefood grade adhesives such as urethane, melaminic and phenolic resins.
Methods for preparing substantially non-antigenic polymers having lone electron pair-containing moieties in high purity are disclosed. The polymers are useful as intermediates for synthesis of amine-based polymers and in the formation of activated polymers for conjugation with nucleophiles. Conjugates and methods of preparation and treatment with the conjugates are also disclosed. The resultantpolymer-amines are of sufficient purity so that expensive and time consuming purification steps required for pharmaceutical grade polymers are avoided.