Brent A Willemsen

58074651, Sep 15, 1998

May 16, 1997

8/857302

Edward G. Knapick - Ogdensburg NJ
Brent Willemsen - Westfield NJ
Ernest P. Wolfer - Allendale NJ

Marcal Paper Mills, Inc. - Elmwood Park NJ

D21H 2300

162100

A process is disclosed which utilizes the "non-papermaking" portion of waste paper to produce a highly absorbent, essentially fiber-free granule which can be used, for example, as an agricultural chemical carrier. The process maximizes the amount of long (papermaking) fiber sent to the paper machine. The waste paper is broken up in a hydropulper, and the pulp stock is screened so that papermaking fibers are retained and sent forward to the papermaking process, and the solid material in the reject stream, such as kaolin clay and inorganic materials pass through a flotation clarifier to separate the solids. The slurry is then dewatered by means of a belt press to form a filter cake. The filter cake then enters a pin mixer where it is broken up into individual granules. The granules are then dried to a solids content of greater than 95%.

58824804, Mar 16, 1999

May 7, 1997

8/852419

Edward G. Knapick - Ogdensburg NJ
Brent Willemsen - Westfield NJ
Ernest P. Wolfer - Allendale NJ

Marcal Paper Mills, Inc. - Elmwood Park NJ

D21F 166

162190

A process is disclosed which utilizes the "non-papermaking" portion of waste paper to produce a highly absorbent, essentially fiber-free granule which can be used, for example, as an agricultural chemical carrier. The process maximizes the amount of long (papermaking) fiber sent to the paper machine. The waste paper is broken up in a hydropulper, and the pulp stock is screened so that papermaking fibers are retained and sent forward to the papermaking process, and the solid material in the reject stream, such as kaolin clay and inorganic materials pass through a flotation clarifier to separate the solids. The slurry is then dewatered by means of a belt press to form a filter cake. The filter cake then enters a pin mixer where it is broken up into individual granules. The granules are then dried to a solids content of greater than 95%.

59518227, Sep 14, 1999

Jun 19, 1997

8/879253

Edward G. Knapick - Ogdensburg NJ
Brent Willemsen - Westfield NJ
Ernest P. Wolfer - Allendale NJ

Marcal Paper Mills, Inc. - Elmwood Park NJ

D21F 166

162232

A process is disclosed which utilizes the "non-papermaking" portion of waste paper to produce a highly absorbent, essentially fiber-free granule which can be used, for example, as an agricultural chemical carrier. The process maximizes the amount of long (papermaking) fiber sent to the paper machine. The waste paper is broken up in a hydropulper, and the pulp stock is screened so that papermaking fibers are retained and sent forward to the papermaking process, and the solid material in the reject stream, such as kaolin clay and inorganic materials pass through a flotation clarifier to separate the solids. The slurry is then dewatered by means of a belt press to form a filter cake. The filter cake then enters a pin mixer where it is broken up into individual granules. The granules are then dried to a solids content of greater than 95%.

56226004, Apr 22, 1997

Jun 7, 1995

8/477273

Kim A. Smith - North Haledon NJ
Edward G. Knapick - Ogdensburg NJ
Brent Willemsen - Westfield NJ
Ernest P. Wolfer - Allendale NJ

Marcal Paper Mills, Inc. - Elmwood Park NJ

D21F 166

162190

In a process for making a particulate or granular material from a reject stream from a coated grade waste paper pulp stock recycling process, fibers for use in making paper are removed, the remaining solid material in the reject stream is dyed and then separated. Water is removed from the reject stream to increase its consistency and form dyed particles or granules. The process and characteristics of particulate and granular material formed by the process are described.

57282706, Mar 17, 1998

Nov 18, 1996

8/751435

Edward G. Knapick - Ogdensburg NJ
Brent Willemsen - Westfield NJ
Ernest P. Wolfer - Allendale NJ

Marcal Paper Mills, Inc. - Elmwood Park NJ

D21F 166

162189

In a process for making a granular material from a reject stream from a coated grade waste paper pulp stock recycling process, the pulp stock is screened so that the reject stream passes through a screen and long fibers are retained for use in making paper. Solid material in the reject stream is separated by flotation. Water is removed from the reject stream to increase its consistency to that of modelling clay. The reject stream is supplied to an agglomerator which forms uniform granules of irregular but approximately spherical shape. The granules are then dried so that the granules have a solids content greater than 95%. Apparatus for performing the process and characteristics of granular material formed by the process and apparatus are also described.

55935427, Jan 14, 1997

May 8, 1995

8/436735

Ernest P. Wolfer - Allendale NJ
Brent Willemsen - Westfield NJ
Venkat B. Maroju - Washington Township NJ
Andres Martiny - Bridgewater NJ

Marcal Paper Mills, Inc. - Elmwood Park NJ

D21D 500

162 4

A method for recovering fiber useful for papermaking from an effluent stream includes a primary process for treating an effluent stream to separate usable fiber from contrary matter, and secondary operations, supplementing the primary process, to treat the contrary matter rejected by the primary process to recover usable fibers contained in the reject matter. In addition, the secondary processing steps separate the reject material into organic and inorganic fractions, which may be usable in other processes. The method of the invention does not require the addition of water as do conventional processes, simplifies handling, disposal, and reduces the costs of disposal.

60198737, Feb 1, 2000

Mar 13, 1998

9/042011

Edward G. Knapick - Ogdensburg NJ
Brent Willemsen - Westfield NJ
Ernest P. Wolfer - Allendale NJ
Michael C. Bonin - Cedar Knolls NJ

Marcal Paper Mills, Inc. - Elmwood Park NJ

D21F 166

162189

Granular absorbent products with low amounts of paper fiber are described. The absorbent products are made from recycled paper and include less than about 10% of paper fibers having a length sufficient to be retained on a 100 mesh screen. A process for making such granular absorbent products is also provided. The granular absorbents are useful for absorbing liquids spilled on the floor, and are crushable when walked on to provide greater resistance to slipping, and yet have a high resistance to attrition.

62144650, Apr 10, 2001

Jul 20, 1999

9/357287

Edward G. Knapick - Ogdensburg NJ
Brent Willemsen - Westfield NJ
Ernest P. Wolfer - Allendale NJ

Marcel Paper Mills, Inc. - Elmwood Park NJ

B32B 516
D21H 1100

428402

Granular absorbent products with low amounts of paper fiber are described. The absorbent products are made from recycled paper and include less than about 10% of paper fibers having a length sufficient to be retained on a 100 mesh screen. A process for making such granular absorbent products is also provided. The granular absorbents are useful for absorbing liquids spilled on the floor, and are crushable when walked on to provide greater resistance to slipping, and yet have a high resistance to attrition.