초록 ▼

According to this invention, there is provided a reinforcement blanket having a plurality of layers of fiber-reinforcement materials sewn together. The sewing together of the various layers of the fiber-reinforcement materials provides a plurality of channels extending through the reinforcement blan

According to this invention, there is provided a reinforcement blanket having a plurality of layers of fiber-reinforcement materials sewn together. The sewing together of the various layers of the fiber-reinforcement materials provides a plurality of channels extending through the reinforcement blanket. The reinforcement blanket can be shaped into a preform or can be used directly as a reinforcement in a molding process. The channels in the reinforcement blanket aid in distributing a matrix resin during an impregnation process.

대표청구항 ▼

A reinforcement blanket comprising a combination of layers of fiber-reinforcement materials, consisting of a first layer of continuous strand mat; a second layer of unidirectional knitted rovings reinforcement material; a third layer of continuous strand mat; a fourth layer of continuous strand mat;

A reinforcement blanket comprising a combination of layers of fiber-reinforcement materials, consisting of a first layer of continuous strand mat; a second layer of unidirectional knitted rovings reinforcement material; a third layer of continuous strand mat; a fourth layer of continuous strand mat; a fifth layer of unidirectional knitted rovings reinforcement material; a sixth layer of unidirectional knitted rovings reinforcement material; and, a seventh layer of continuous strand mat; sewn together with a thread material, the reinforcement blanket including a plurality of channels formed by the thread material extending through the continuous strand mat and the unidirectional knitted rovings reinforcement material.