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US 2010/0168230 A1Published application
Methods for Making Organozinc Salts and Compositions Containing the Same
OwnerRaymond L. Nipinventor
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Abstract
Organic zinc salts and mixtures thereof, organic zinc salt coated particles, methods of preparing organic zinc salts and organic zinc salt coated particles, and various applications of such coated particles, including applications in rubber, other polymeric materials, and pesticides and/or fungicides are disclosed.
Claims33
A method for preparing organic zinc salt, comprising the steps of:
- a) mixing a zinc ammonia complex solution with one or more organic acids and/or soluble organic acid salts to form a mixture;
- b) agitating (and optionally heating) the mixture to at least partially remove ammonia from the mixture, thereby forming said organic zinc salt;
- c) optionally, cooling the mixture to a temperature of from about 5° C. to 30° C.;
- d) filtering the mixture to isolate said organic zinc salt;
- e) optionally, washing the isolated organic zinc salt;
- f) drying the isolated organic zinc salt;
- and
- g) optionally, milling the isolated organic zinc salt.
5 more elements
A method of making coated particles, comprising:
- a) mixing a zinc ammonia carbonate complex solution with one or more organic acids and/or salts thereof, thereby forming a mixture;
- b) mixing substrate particles with the mixture to form a suspension;
- c) agitating (and optionally heating) the suspension to remove substantially all ammonia and/or carbon dioxide from the mixture, thereby forming said coated particles, having a coating thereon comprising one or more organic zinc salts in an amount of from 1 to 30 wt. % of the coated particles;
- d) optionally, heating the coated particles at a temperature of from about 50° C. to 200° C.;
- and
- e) optionally, milling the coated particles.
3 more elements
A coated particle, comprising:
- a) a particle core selected from the group consisting of silica, clay, kaolin, talc, aluminum silicate, calcium carbonate, carbon black and mixtures thereof;
- and
- b) a coating thereon, comprising a zinc salt of an organic acid in an amount of from 2 to 30 wt. % of the coated particle.
Dependencies are inferred from the claim text.