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公开(公告)号:US3933959A
公开(公告)日:1976-01-20
申请号:US286305
申请日:1972-09-05
CPC分类号: B29C67/20 , B65D81/09 , Y10T428/2922 , Y10T428/2967 , Y10T428/2975 , Y10T428/2976
摘要: Generally linear foamable strandular particles which are asymmetrical about a plane generally containing the longitudinal axis provide a desired curled dunnage material when heated to cause foaming. A wide variety of methods may be used to introduce the desired asymmetry.
摘要翻译: 通常在通常包含纵向轴线的平面上不对称的线性可发泡链状颗粒在加热时提供所需的卷曲垫料以引起起泡。 可以使用各种各样的方法来引入期望的不对称性。