|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||422/133 ; 422/224 ; 366/173 ; 521/917|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 6 인용 특허 : 18|
A mixing method and apparatus for preparing multi-component plastic materials, especially polyurethanes, which are mixed before being fed into a mold. According to the invention, a first and at least a second main component are mixed by feeding them into a limited area of a mixing chamber through lateral inlet apertures symmetrically arranged with respect to a plane comprising the longitudinal axis of the chamber and in which a third or secondary component to be mixed is fed through a channel, opening in the chamber upstream of said inlet apertures and o...
A method for uniformly mixing first and second chemically interactive main components and a colouring agent to produce a multi-component coloured plastic material, which method comprises the steps of: disposing a control and cleaning member for movement along an axis of a mixing chamber toward and away from an output end of the mixing chamber; moving the control member to a retracted position in which the control member opens first and second inlet apertures on sides of the mixing chamber that are opposite each other and connects a third inlet aperture, ...