초록 ▼

PHA pellet compositions are provided which are processible into blown and cast free-standing films. The Mw of the PHA in the pellets used to produce the films is at least 470,000, at least 435,000 if PHA thermal stabilizers of the invention are used. In order to achieve a stable, unsupported film ha

PHA pellet compositions are provided which are processible into blown and cast free-standing films. The Mw of the PHA in the pellets used to produce the films is at least 470,000, at least 435,000 if PHA thermal stabilizers of the invention are used. In order to achieve a stable, unsupported film having desirable elongational and tensile properties, the Mw of PHA in the film is greater than about 420,000.

대표청구항 ▼

PHA pellet compositions are provided which are processible into blown and cast free-standing films. The Mw of the PHA in the pellets used to produce the films is at least 470,000, at least 435,000 if PHA thermal stabilizers of the invention are used. In order to achieve a stable, unsupported film ha

PHA pellet compositions are provided which are processible into blown and cast free-standing films. The Mw of the PHA in the pellets used to produce the films is at least 470,000, at least 435,000 if PHA thermal stabilizers of the invention are used. In order to achieve a stable, unsupported film having desirable elongational and tensile properties, the Mw of PHA in the film is greater than about 420,000. 11. A multi-functional filler which comprises an inorganic fine particle containing an acid reactive element and a fluoride, wherein a cement reactive phase is formed on the surface of the inorganic fine particle, and the cement reactive phase is further covered with polysiloxane. 12. The multi-functional filler according to claim 11, wherein the inorganic fine particle is a fluoride-containing glass. 13. The multi-functional filler according to claim 12, wherein the inorganic fine particle is selected from the group consisting of sodium fluoride, strontium fluoride, lanthanum fluoride, ytterbium fluoride, yttrium fluoride, a calcium-containing fluoroaluminosilicate glass, a lanthanum-containing fluoroaluminosilicate glass, and a strontium-containing fluoroaluminosilicate glass. 14. The multi-functional filler according to claim 11, wherein the acid reactive element is selected from the group consisting of elements belonging to Groups I, II and III in the Periodic Table. 15. A process for producing the multi-functional filler as defined in any of claims 12 to 14, which comprises: reacting an acidic polymer with an acid reactive element-containing inorganic fine particle covered with polysiloxane. 16. The process according to claim 15, wherein the acid reactive element-containing inorganic fine particle covered with polysiloxane is obtained by at least partially hydrolyzing, in an aqueous medium containing the acid reactive element-containing inorganic fine particle, a silane compound represented by the general formula (I): wherein Z is RO-- or OCN--, X is halogen, Y is --OH, R is an organic group having a carbon number of 8 or less, and n, m and L are each independently an integer of 0 to 4, provided that n+m+L=4, and then condensing t