Patent ID: 8084120

Claim:
A composite material comprising: (a) a first prepreg material with improved resistance to microbuckling and kinkband formation achieved by incorporation therein, of insoluble and/or partially soluble particles; and (b) a second prepreg material with improved resistance to delamination achieved by at least one of: (i) incorporation of a thermoplastics component in the second prepreg material; (ii) incorporation of insoluble or partially soluble particles within the second prepreg material; (iii) incorporation of insoluble or partially soluble particles between layers of the second prepreg material; and (iv) incorporation of one or more strengthening interleafs between layers of the second prepreg material, wherein the first prepreg material and the second prepreg material are respectively arranged in contacting relation in a first direction and a second direction.