In a resin-film manufacturing apparatus of an embodiment, when a lip gap control is started, a difference between a state of a target heat bolt (THB) at a start of current control and a state of each of all the heat bolts at a start of last control is obtained, when the difference between the states of THB at the starts of the current and last control is a smallest one, a learning result of THB is set as an initial value of a control condition for THB, and when the difference between the states of THB is not the smallest one, either one of a learning result of the heat bolt of which the difference between the states is smaller than the difference between the states of THB and the learning result of THB is set as the initial value of the control condition for THB.

Isoporous block copolymers of cross-linked structures, and methods of preparing, which are resistant to harsh solvent conditions from organic, acidic or basic materials are disclosed.

A treated liquid crystal polymer resin sheet includes a main surface, a non-fiberized portion in which fibrous crystalline portions and a non-crystalline portion filling a gap between the crystalline portions are provided, and a fiberized portion in which the fibrous crystalline portions is exposed at the main surface with a gap between the crystalline portions that is unfilled.

A thiol-yne polymeric material and methods for producing said polymers are disclosed. The material is produced by the radically mediated polymerization of monomers having alkyne and thiol functional groups. The alkyne moiety, internal or terminal, may react with one or two thiols. Degradable monomers may be used to form degradable polymers.

The provided is an olefin (co)polymerization catalyst with an excellent catalyst activity, wherein the catalyst component is prepared by using a metallocene compound and titanocene compound or a half-titanocene compound so as to provide polyolefins having a high molecular weight and a low melt index, and also a method for olefin (co)polymerization using said catalyst.

The provided is an olefin (co)polymerization catalyst with an excellent catalyst activity, wherein the catalyst component is prepared by using a metallocene compound and titanocene compound or a half-titanocene compound so as to provide polyolefins having a high molecular weight and a low melt index, and also a method for olefin (co)polymerization using said catalyst.